Of backpacks it sells per day, where th anywhere from $9 to $15. Which price gives the store the maximum amount of revenue, and what
revenue? (Revenue = price x number of backpacks.)
$9.00 per backpack gives the maximum revenue; the maximum revenue is $3200.
$12.00 per backpack gives the maximum revenue; the maximum revenue is $312.00.
$12.50 per backpack gives the maximum revenue; the maximum revenue is $312.50.
$15.00 per backpack gives the maximum revenue; the maximum revenue is $20.00

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)

wedfghjkl;

tyuiop[]ghjkl;

step-by-step explanatio89

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72