So he goes from side 2 to side 4 there is his cut have a nice day sir/maam
The cost of 85 shirts is 400+7.5*85=1037.5
The average per shirt is 1037.5/85=12.206
The answer is probably C or D
3 times (2) gives 3x +9y = -21 (3)
<span>(3) - (1) gives 13y = -39 </span>
<span>y = -3 </span>
<span>Sub. y=-3 into (2) </span>
<span>x + -9 = -7 </span>
<span>x = 2
</span>
<span>Answer = (2,-3) </span>
