it takes about 5.42 minutes to pump in 50 gallons
Answer:
-72
Step-by-step explanation:
the answer is -72
B.
Step-by-Step explanation:
it is increasing by 1/2
90 =4v + 10
-10. -10
___________
80 = 4v
/4. /4
v = 20
hope it helps
approximately equal to 3.14