Find the volume of the silo if the radius of the hemispherical top is 20 feet and the height of the cylinder is 50. use 3.14 for pi

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it. how many multiple-choice questions are on the test?

If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

Solve the formula ax+ by = c for x.