Answer:
40$
Step-by-step explanation:
because 30.00 and 20.00 equal 50$ and you would subtract the quations and get 40$
$40
2 1/2 times the week
8 x 2.5 = 20
12 x 2.5 = 30
40 x 2.5 = 100
x= - 18/7 - 1/7y, y
or if you are solving for y= -18-7x, x
( SEE OTHER IMAGE)
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