Final answer:
Rajani would need to pay a total of $46.25 for 17 slices of pizza including her monthly membership fee. For xx slices of pizza per month, the cost would be $25 plus $1.25 multiplied by xx.
Step-by-step explanation:
To calculate how much Rajani would have to pay for buying 17 slices of pizza with a membership at the pizza shop, we have to add the fixed membership cost to the total cost of the slices (17 slices at $1.25 each):
Membership cost = $25
Cost per slice with membership = $1.25
Total cost for 17 slices = 17 slices × $1.25/slice
Total cost for 17 slices = $21.25
Therefore, Rajani's total cost this month, including the membership, would be:
Total cost = Membership cost + Total cost for slices
Total cost = $25 + $21.25
Total cost = $46.25
To calculate the monthly cost for xx slices of pizza, the formula would be:
Monthly cost for xx slices = Membership cost + ($1.25 × xx)
Monthly cost for xx slices = $25 + $1.25xx