Find the equivalent expression for each of the following (and explain)

Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?