Answer:
5 hours
Step-by-step explanation:
Mark recieves 3mg per hour. This can be rewritten as y=3x. Cassie recieves 2x+5. To solve, use substitiution. 3x=2x+5. To solve, subtract "2x" from "3x." You then get x=5.
Answer:
z=12
Step-by-step explanation:
6*2=12
z=12
Answer:
20%
Step-by-step explanation:
(60 - 48) / 60 = 0.2 (20%)
55% because you add 80% and 30% which is 110% and divide that by 2.