What is 32.5 percent in a simplest form

When turned about its axis of rotation, which shape could have created this three-dimensional object?

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

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a. m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?