You are looking for the GCF or greatest common factor of 15 and 20 a way to do the is the upside down cake method.
The three items cost altogether is : 111.32 + 28.75 + 73.21 = 213.28
So, he must work 213.28 : 8.75 = 24.3748571429...
Since if he works 24 hours, he wouldn't have enough money to buy the 3 items, so he must work 24 + 1 = 25 hours.
Recheck : 25 x 8.75 = 218.75 ( > 213.28)
Answer:
Step-by-step explanation:
I am not 100% positive but think it is c
