Someone bought three t-shirts for $15 and nine $0. 90 each including tax how much did he spend

You multiply three( # of shirts) and 15.90 ( price)

The answer is $47.70 is how much he spend

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. : )