Answer: her total sales would be $24167
Step-by-step explanation:
The basic pay that Norma Jean makes is $25 per hour.
Let x represent the total amount of sales that she makes in a week.
She works 35 hours per week. She gets a commission of 15% on her total sales. This means that the amount that she gets as commission if she makes sales worth $x in a week would be
15/100 × x = 0.15 × x = 0.15x
Therefore, if she makes total sales of $x in a week, her total pay would be
35 × 25 + 0.15x
= 875 + 0.15x
Therefore, to to make $4,500 in a single week, her total sales would be
4500 = 875 + 0.15x
0.15x = 4500 - 875 = 3625
x = 3625/0.15
x = $24167