Answer:
See below, please
Step-by-step explanation:
The right:


The left:

So, after comparing the right side and the left side of this equation, we know
1)

2)

3)

So,

Easy! multiply the 6% by $8 then add it to the $8, now, multiply the 15% by the total of the cost with tax. then you all that to the total. ($9.75)
= 6.37 * 10^4 = 637 * 10^2 = 63700
In short, Your Answer would be Option A
Hope this helps!