Which set i numbers can represent the side lengths, in inches, of an acute triangle

The volume of a cube is 8 in to the 3rd power. how long is each side?

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)