Answer:
for question one - x = 12
Step-by-step explanation:
a triangle is always 180, in other words you will add all the corners equal to 180
ex (for first question) - 7x -2 + 4x + 5x - 10 = 180
you add like terms, the x with x and single numbers with numbers, which results in 16x - 12 = 180. then you do the original operation "what you do to one sign of the equal side you do to the other"
The son is 8. I’m not sure if I’m right hope this helps
Yes I think it’s s right triangle
217.5/87=2.5. I put it into a calculator and this is what I got.
