The shape of france's production possibilities frontier (ppf) should reflect the fact that as france produces more cars and fewer trucks, the opportunity cost of producing each additional car?

the opportunity cost of producing each additional car REMAINS CONSTANT

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)