Kendall's sister had 25 hair clips. 7 of them were blue and the rest were purple. what percent of kendall's sister hair clips were purple?

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?

Describe how to determine the average rate of change between x = 4 and x = 6 for the function f(x) = 2x^3 + 4. include the average rate of change in your answer.

The quotient of 15 and a number is 1 over 3 written as an equation