Water come out of a pipe at a rate of 16 gallons per minute. How many gallons have come out after 4 minutes​

64 gallons

Step-by-step explanation:

Ask yourself; if

 16gallons = 1minute

     ?           = 4minutes

Cross multiply;

(16 × 4) ÷ (1) = 64

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )