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Ready4	If the numbers $\frac{2}{5}$ , $\frac{<font color='#FE8080'>1</font>}{2}$ , $\frac{<font color='#FE8080'>1</font>}{4}$ , $\frac{<font color='#FE8080'>1</font>}{3}$ , and $\frac{3}{10}$ were ordered from least to greatest, the middle number of the resulting sequence would be
Ready4	Each $\text{X}$ in the mileage table above represents an entry indicating the distance between a pair of six towns in a certain county. If the table were extended to represent the distances between all pairs of $36$ towns in the county, and each distance were to be represented by only one entry, how many entries would the table then have?
Ready4	If $j$ is the sum of even integers from $30$ to $70$ , inclusive and $k$ is the number of even integers from $30$ to $70$ , inclusive, what is $j-k$ ?
	If wz < 2, is z < 1?(1)w > 2(2)z < 2
	What is the remainder when the positive integer n is divided by the positive integer k, where k >1? (1) $${n}=({k}+{1})^{3}$$ (2) k = 5
PREP07 Test 2	What is the remainder when the positive integer n is divided by the positive integer k, where k > 1 ? (1) n = (k + 1)^3 (2) k = 5
190124	$$ hw \neq 0$$,f(x)=-$$x^{2}$$+1,is $$\frac{f(w+h)-f(h)}{h}$$ > $$\frac{f(w+h)+f(h)}{h}$$？ 1：0 < h < 1 2：w < 0
Magoosh	If n is a positive integer, is $$ \frac{1}{n}$$ -$${1}\over{n+1}$$ $$\lt$$0.05?Statement #1: n is oddStatement #2: n is a positive multiple of 7
190113	When positive integer is divided by 4, is the remainder 1? (1)The remainder is 1, when $$p^{2}$$ is divided by 4. (2)The remainder is 1 when P is divided by 2.
	如图所示,正方形,对角线中点M,一人从A点出发去M点,然后折转去N点再去C点.另外一人是从a点出发去b点方向,到p然后立即直接直线走向C点,两人最终沿各自路线走的距离是相等的,求ap比bp.
Magoosh	If $$\frac{4}{w} + \frac{4}{x} = \frac{4}{y} and wx = y$$, then the average (arithmetic mean) of w and x is
Manhattan	If the side length of Square B is twice that of Square A, the area of Square B is how many times the area of Square A?
190124	Which of the following options is the set of positive integers satisfying equation $$(x-1)^{2}$$ - 1 ≤ 0?
190113 还原机经选题: 数论&代数	Two students, Tom and Mary, solved the equation at the same time. Tom thought that the solutions of the equation were 1 and – 9, but he misread the corresponding number of c in the calculation. Mary thought that the solutions of the equation were 1 and 7, but Mary mistook the corresponding number of b in the calculation. What are correct solutions of this equation?
300难题	If k$$S_n$$ is defined to be the product of (n + k)(n - k + 1) for all positive integers k and n,which of the following expressions represents k+1$$S_{n+1}$$ ?
	Refer to the pictograph of a survey of students at Central Community College. Each symbol represents 10 students in a sample of 300.Use the drop-down menus to complete each statement according to the information presented in the diagram.If one student is selected at random from the 300 surveyed, the chance that the student will be under 30 o ra high school graduate or both is.If one student is selected at random from the 300 surveyed, the chance that the student will be both under 30 and a high school graduate is.
OG12 OG15	If x and y are positive, is $$\frac x y$$ greater than 1 ?(1)$$xy >1$$(2)$$x-y >0$$
	If u, v, and w are integers, is u > 0 ?(1) $${u}={v}^{2}+{1}$$(2) $${u}={w}^{4}+{1}$$
PREP07 Test 1	If u, v, and w are integers, is u > 0 ?(1) $$u = v^2 + 1$$ (2) $$u = w^4 + 1$$
	Which of the following is equal to $$({2}^{k})({5}^{k-1})$$?