Write as a single power: 5^3 × 5^2 × 5

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

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

25 ! i need asap! ! ill mark brainliest!