Answer: option A is the correct answer.
Explanation:
s represents the number of pairs of shoes that Rich's sells.
P represents the total pay from selling s pairs of shoes.
He is paid a base salary of $25, plus $5 for every pairs of shoes he sells.
The relationship between his pay and pairs of shoes sold can be represented by the linear equation which is expressed as
p = 25 + 5s
For a week in which he sold 7 pairs of shoes, his total pay would be
p = 25 + 5 × 7
p = 25 + 35
p = $60