Answer:
$25 - $10f
Step-by-step explanation:
Fishie's name is fishy.
We know Mr. Fishie spent $15 on a tank. His 10 fish cost 10*$f. His total is:
Total =15 + 10*f
His change after 2 $20 would be:
$40 - ($15 - $10f), or
5x+56
5x+8(5+2)
5x+8(7)
Answer: x=-6
5-2x=-4x-7
5+2x=-7
2x=-12
X=-6
43.0825
I don't know if the tax is percentage or just adding