Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. The oil change for one car required 5 quarts of oil and cost $26.30. The oil change for the other car required 7 quarts of oil and cost $30.80. How much is the labor fee and how much is each quart of oil?

5*26.30-7*30.8

Step-by-step explanation:

I think

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

4.08%

step-by-step explanation: