To write the equation, you can start with the answer of $680. She receives $400 + $20*plans sold:
400 + 20p = 680
20p = 280
p = 14
{$400 + $20 * 14 = 680}
Sam sold 14 plans to make a total of $680.
First, you subtract 5h from both sides.
-9 = -16 + h
Then, you add 16 to both sides.
7=h
So, h = 7.
Yes, because 6/7 is the same as 36/42 and 4/6 is the same as 28/42. It is easy to see that 6/7 is greater than 4/6
18 1/4 pieces she will have now
:)
