Answer:
B. 2x-y = 8
Step-by-step explanation:
First, plug in the points (5,2) into the equation. 5 being x and 2 being y.
Then 2x-y = 8
2 (5) - (2) = 8
10 - 2 = 8
8 = 8
If the school spent $1,137.50 and wants to make a $1500 profit, then they need to make $2637.50 to earn back what they spent and make a profit. So, if you divide $2637.50 by 350, the number of books they purchased, you get the amount each book would have to cost to make this much money. The lowest price they could sell them for is $7.54.
A^2=c^2 - b^2
a^2=169-144
a=root 25
a=5
The answer will be 5
