A=equilateral hope that helped
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Your answer will be is :


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2(z-10)=-4
2z-20=-4
2z=16
z=8
If you would like to know the average earning per week, you can calculate this using the following steps:
525 + 575 + 475 = 1575
1575 / 3 = 525
The correct result would be $525.