What is the product? (5r − 4)(r2 − 6r + 4)
a. 5r3 − 34r2 + 44r − 16
b. 5r3 − 4r2 + 14r − 16
c. 5r3 − 6r − 16
d. 5r3 + 10r − 16

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

How to solve a simultaneous equation involved with fractions?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap