Answer:
Divide the number of pages in the album by the 90 photos
Place one photo on a page at a time then start over when he reaches the end of the album and continue to repeat until all photos are gone
Just have one page of photos
Step-by-step explanation:
Answer: 7 pounds
Step-by-step explanation: 1 3/4×4=7
The length of a'b' is the same as ab because it is the same image so it is 3 units