Carmel can drive 320 miles on one tank of gas, and one tankful costs $39. how many tanks of gas will she need to drive 2,240 miles, and how much will it cost? use inverse operations to check your answer.

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

If f(x)=3 over x+2 - square root x-3 then f(7)=

The length of time for one individual to be erved at a cafeteria is a random variable having an ex- ponential distribution with a mean of 4 minutes. what is the probability that a person will be served in less than/3 minutes on at least 4 of the next 6 days?