1225 = 550 + 0.02 * (s-8500)
675 = 0.02 s - 170
845 = 0.02 s
s = 42,250
An insurance agent receives a salary of 550 cedis and a 2% commission on all sales over 8500 cedis .If his total income in a particular month was income 1225 cedis what was the amount of his sales for that month
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