What is 15% of $12.75.

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

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

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?