3. Atale is filling a cylindrical tank with gasoline at a rate of 15 cubic feet per minute. The area of the base of the tank is 100 square feet. If the height of the tank is 7.5 feet, how many minutes will it take to fill the tank completely? A 200 minutes
B 150 minutes
C 100 minutes
D 50 minutes

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

the answer will be b x² +x-1

step-by-step explanation:

(-infinity,infinity)