The receipt shows the prices of goods that Robert bought at the store. The state Robert lives in has a sales tax rate of 8% on all purchases. How much money does Robert pay in sales tax and what is the total amount he must pay for his purchases?

1.38 sales tax

18.63 total

Step-by-step explanation:

multiple 8% by total,or 0.08 and 17.25 to get 1.38. Add that to total to get 18.63

it's a proportional graph.

step-by-step explanation:

8 x 5 = 40         (and you have -8x and -5y)

x= absiss

y= orderly

so you have a proportional graph.