Add the three angles and set them to 180
4x-13+15+x+18=180
5x+20=180
5x=160
x=32
Then plug in to get A and C
A=4*32-13
A=115
C=32+18
C=50
Answer: A
Step-by-step explanation:

1. Swap x and y.

2. Solve for the new y.
Add 8

Divide by 2.

Extract the square root.

Answer:
He spends 8 dollars
Step-by-step explanation:
4 + 4 = 8
Hopefully this helps you :)
pls mark brainlest ;)
Answer:
I hope this helps
Step-by-step explanation:
five percent
2x^3 - 11x^2 + 12x + 9
= (x - 3)^2( 2x = 1)
The root 3 has multiplicity of 2.