Cassie paid 55% of the bill. The remaining $18 was covered by her friend. What was the total bill

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent