Answer: total cost = 25 + 1.75(x - 16)
Step-by-step explanation:
Let x represent the number of extra pages that the photo book has.
The online photo service charges $20 to make a photo book with 16 pages. Each extra page costs 1.75. It means that the total cost of making a book with x extra pages would be
20 + 1.75(x - 16)
The cost to ship the completed photo book is $5. Therefore, the total cost in dollars to make and ship a photo book with x extra pages is
20 + 1.75(x - 16) + 5
= 25 + 1.75(x - 16)
