Simplify the expression. 7(f + 4) + 6f

a. 13f + 4

b. 6f + 7(f + 4)

c. 13f + 28

d. 17f

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Acylinder has volume 45π and radius 3. what is it’s height?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?