Respuesta :
Answer:
Samantha = 60%
Charlie = 75%
Step-by-step explanation:
Since the test is 20 points total you can multiply it by 5 to make any points out of the 20 become a percentage so say Samantha has a 12/20 if you multiply both by 5 you get 60/100 and say Charlie has a 15/20 you can multiply both by 5 and get 75/100