Answer:

Step-by-step explanation:
y - 8 = ⅗(x - 5)
y - 8 = ⅗x - 3
+ 8 + 8
__________

I am joyous to assist you anytime.
Find the area of the triangle shaped faces. The area of a triangle is b•h/2
7•2=14/2=7
then multiply it by 4.5,
the area is 31.5 in^2
The first part of the answer is 20x+9
Second part is 4a-6b
12 can go into 648 54 times. :)