If , what is the units digit of ?

The positive integer  is divisible by . If  is greater than , which of the following could NOT be the value of ?

If , and  and  are positive integers, which of the following must be less than 1?

The average distance between the Earth and the moon is approximately $3.8\times {10}^5$ kilometers. Which of the following is the closest to the average distance in feet? (1 kilometer is approximately $3.2\times {10}^4$ feet.)${10}^4$

$y=mx-3$ In the equation above, m is a constant. If $y=33$ when $x=6$, what is the value of y when $x=12$?

At least  of 50 team members must receive an award individually from the state in order for the team as a whole to receive an award from the state. What is the greatest number of team members that could fail to receive an award individually from the state, if the team as a whole receives an award from the state?

For which of the following values of is NOT an integer?

What was the approximate total amount of interest paid on a 2-year, $1,000 note that pays interest at an annual rate of 6 percent compounded semiannually?

If three sides of a rectangular solid have areas of 12, 18, and 24, what is the volume of the solid?

At a wedding reception, each of 11 guests brought a different individual as a date. If 5 people leave the reception early, what is the greatest possible number of guests remaining with their original dates?

On a fishing expedition, the total weight of Eduardo's two heaviest catches was 30 pounds. If twice the weight of the first of those catches was 12 pounds more than the weight of the second, what was the weight, in pounds, of the first?

A store sold 50 sweaters, which usually are priced at x dollars, at 15 percent below the normal price. In terms of x, what was the total revenue from the sale of the sweaters?

The average (arithmetic mean) of 110, 30, and 85 is 10 less than the average of 40, 100, and what number?

If $\frac{4-2y}{2+y}=y$, what is the value of $y^2+4y+4$?

Of the 600 professionals who took an advanced certification examination, 50 percent passed the written portion of the exam, 30 percent passed the simulation portion of the exam, and 65 percent passed the demonstration portion of the exam. If 20 percent of the examinees passed no portion of the exam, and 35 percent of the subjects passed exactly two portions of the exam, how many of the subjects passed exactly one portion of the exam?

A positive number  is multiplied by 3, and this product is then divided by 4. If the square of the result of these two operations equals , what is the value of ?

If 1 foot is approximately 0.3 meters, which of the following best approximates the number of feet in 5 meters?

Machine A produces nails at a uniform rate of 120 every 10 seconds, and Machine B produces nails at a uniform rate of 100 every 15 seconds. If the two machines run simultaneously, how many seconds will it take for them to produce a total of 140 nails?

For an exercise, 8 individuals must be assigned into pairs. How many different pairs can be assigned?

Rectangular Floor X is to be half as long as it is wide. If its perimeter is to be 240 yards, what will be the length of Floor X, in yards?