My grade is 50% and I need to reach a 70, I have 19 assignments that range from 10 to 75 points how many do I need to complete?

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Average acceleration: i have no idea how to do this.