If 1/2 gallon of paint covers 1/4 of a wall, then how much paint is needed to cover the entire wall?
a. 1/8 gallon
b. 1 gallon
c. 1 1/2 gallon
d. 2 gallons

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18

Find the 6th term of the expansion of (2p - 3q)11. a. -7,185,024p4q7 c. -7,185p4q7 b. -7,185,024p6q5 d. -7,185p6q5 select the best answer from the choices provided a b c d