Answer:
y=20x
Step-by-step explanation:
Since y represents the total cost y is the total. 20x because it is 20 dollars an hour and x after 20 because we do not know how many hours they will plan for lessons.
I think the answer is 6.6
1: given 2: distributive property 3: multiplication property of equality 4: addition property of equality 5: division property of equality