Answer:
p(x) = 300 + 0.035x
Explanation:
Jim's pay is described as $300 plus 3.5% of sales, where x represents his sales. This means the amount of his sales is multiplied by 3.5% and that product is added to $300 to compute the amount of Jim's pay.
If we let the desired function be p(x), the above tells us ...
p(x) = 300 + 0.035x
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Of course, you know the decimal equivalent of 3.5% is 0.035.