The answer fam is<span>Part A: Company A: y=30x+13 Company B: y=28x+15 </span> <span>X: number of mattresses </span> <span>Y: total cost </span> <span>Part B: </span>
<span>Company A: 30(4)+13= 133 Company B: 28(4)+15= 127 </span>
<span>Company B cost less than Company A does when you purchase 4 mattresses </span> <span>Part C: </span> <span>Company A: 30(7)+13= 223 </span> <span>Company B: 28(7)+15= 211 </span> <span>You save $12 by using the services of Company B instead of Company A to clean 7 mattresses</span>
Answer: The maximum profit that can make by the company is $461. x= Number of widget. The profit of the company will maximum only when if they sell widget.