Keisha bought these supplies for school: 4 packs of pencils that cost $0.85 each
6 packs of pens for $1.25 each

5. What was the total cost of the pencils and pens, including a 6% tax?

A
$13.35
B
$10.90
C
$11.55
D
$2.23
.

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.