Which expression represents the product of 3 and (5/4n + 1.8)

A. 5.55n
B .9.15n
C. 3.75n + 1.8
D. 3.75n + 5.4

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?

Write an inequality for this sentence the quotient of a number and -5 increased by 4 is at most 8

Which expression can be used to find the cost of .75 kilogram of cheese at the price of $6.40 per kilogram?