Super sports is offering a 20% discount on each pair of shoes. which originally priced $72.50. a 6.5% sales tax will be applied to the discounted price. the same shoes are also available on double dribble's web site for $54.75. a 9% processing fee will be applied to the cost of the shoes, plus a shipping fee of $5.99 for each pair. what is the difference in the total costs of the 12 pairs of shoes between the two stores?

$46.77

Step-by-step explanation:

First, we need to determine what the final price is for each pair in these two stores. In Super Sports, the shoes were originally $72.50, but they had a 20% discount. This means that you would pay for 80% (0.8) of the price:

72.50 * 0.8 = 58

A 6.5% sales tax will be applied to the discounted price. This means you would pay for 106.5% of the price:

58 * 1.065 = 61.77

On the other hand, at Double Dribble, the shoes are originally $54.75. A 9% processing fee is applied to this:

54.75 * 1.09 = 59.67

plus a shipping fee of $5.99:

59.67 + 5.99 = 65.67

If we were to buy 12 pairs of shoes, the prices would be:

Store A: 61.77 * 12 = 741.24

Store B: 65.67 * 12 = 788.01

The difference would be $46.77 (788.01 - 741.24)

picture below

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b