Answer:
x = 2
y = 3
Step-by-step explanation:
add the 2 together and the y-values drop out and you are left with:
8x = 16
3(2) + 2y = 12
2y = 6
15.99 * .8 = 12.79
15.99 + 12.79 = 28.78
the answer is $28.78 :)