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Sadie works in a store in Greenwood where she earns

Question: Sadie works in a store in Greenwood where she earns a base salary of $85 per week plus a commission of 20% of sales. If Sadie sold $90 worth of merchandise during the first week of the month, what was her total pay that week?
(1) $101
(2) $103
(3) $111
(4) $102

Solution:

REMEMBER :
Commission formula:
commission = commission percentage × sales
Total pay formula:
total pay = base salary + commission

First find the commission. Write 20% as the decimal 0.20 before using it in the equation.
commission = commission percentage × sales
= 0.20 × 90
= 18
The commission was $18.
Now find the total pay.
total pay = base salary + commission
= 85 + 18
= 103
The total pay was $103.
Then the option is (2).

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