So what you have to do to figure this out is 47-20 to get 27, then take 27 and divide it by 3 to get the answer of 9 comic books were sold by John.
Answer:
x2−8x 7
Step-by-step explanation:
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Solve the incomplete quadratic equation:

Solution set:
S = {0, 8}.
I hope this helps. =)
Answer:
The equation is equal to 
Step-by-step explanation:
Let
c-----> the cost in dollars
t----> the time in hours
we know that
One adult and two children
