Answer:
step 3
Step-by-step explanation:
4*7=28
Not 26
Length of fencing: 4, 6, 7, 9, 10
Cost: 36, 54, 63, 81, 90
List the multiples of each award:
24: 1 , 2, 3, 4, 6, 8, 12, 24
18: 1, 2, 3, 6, 9, 18
The greatest common multiple is 6
The greatest number of shelves will be 6.
Answer: 5(x-1)