Answer:
A.

Step-by-step explanation:
Since the denominators are the same we just have to combine the top.

Combine alike terms.

put that over our denominator.

Answer:
i think its 24x-12? sorry if it is wrong
Answer:
$14.24
Step-by-step explanation:
9.89+1.99=$11.88
11.88*1.07=12.71
12.71*1.12=$14.24
Hope this helps!
128 = 8d, because the product calls for multiplication to be performed.