You have lunch at an italian restaurant. the cost of lunch before tax is
$12.50. the sales tax rate is 7%. you leave a 20% tip on the pre-tax amount.
what is the total amount you spend on lunch, including tax and tip?

7/100 = 0.07

0.07 * 12.5 = 0.88

20/100 = 0.2

0.2 * 12.5 = 2.5

2.5 + 0.88 = 3.38

3.38 + 12.50 = 15.88

You spend a total of $15.88.

answer: howdy

step-by-step explanation:

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x