Answer:
yo that's too hard it should be 20 points
Answer:
Step-by-step explanation:
Hope it helps <3
Answer:
total books in library = 39
books bought from yard sale = ??
Total book in library now = 84
Now,
books bought from yard sale= 39-84
= 45
1st: 5x-20+2x (distribute the 5 to the numbers in the parenthesis) distribution property
2nd: 7x-20 (add like terms aka 5x and 2x) I believe commutative property of addition
Finished!
You don't need to find the area of the triangle to find the total area.
The total area will be found on this website:
https://www.symbolab.com/solver/trapezoid-calculator/trapezoid%2C%20find%20Area%2C%20given%20a%3D2.3...
Sorry, I didn't have much time to answer your question, so I will leave the rest to you.