SAT Math grade 9

If n is a prime number, then 6n must be

How many integers between 9 and 99 have an even tens digit and an odd units (ones) digit?

If √(2m+1) = √(3m-3), what is the value of m?

Point P is a distace of 4 from the point (1,1). Which could be coordinates of P?

The diameter of a circle is 1.  What is the area?

The sum of which of the following combinations of numbers must be even?

If n is a positive integer and 2n² - n³ = 0, what is the value of n?

Rectangle ABCD has width w and length l that is twice the width. If w=2, what is the area?

What is the average in degrees of the four angles in a rectangle?

16 oz = 1 lb., and 1 ton = 2,000 lbs.  How many ounces equal two tons?

The volume of a cube is 8 cubic inches.  What is the surface area of the cube in square inches?

If 2x - 1 = 6, what is the value of 2x + 1?

12, a, 6, 8, 2, 14. The mean of these is 6. What is the value of a?

Which of the following represents 4 times the sum of x and 7?

A random # is chosen from 1-9. What's the probability that the # chosen is a multiple of 4?

Area of a square=16.  A new square is formed by doubling the length of each side.  New area?

The volume of a right circular cylinder with a radius of 6 is 9π. What is the height?

2, 10, m, 12, 4. The mean and median are equal to m, what is the value of m?

The lines 6x+3y=7 and y=mx+b are parallel . Which of the following is the value of m?

10 decimeters = one meter.  How many decimeters are equal in length to 12.5 meters?