Answer:

Step-by-step explanation:

x
= 
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Answer:
B. 13
Explanation:

Logarithm rules:

Breakdown of the expression:



insert given values


Answer:
A & B
Step-by-step explanation:
Both to the same decimal place
Basic Pay = $40
Commission for 1 pair of shoes = $4.50
Let x be the number of shoes he needs to sell.
40 + 4.5x ≥ 112
4.5x ≥ 72
x ≥ 16
Answer: He must sell at least 16 pairs of shoes.