Answer:
Assuming angle A and angle B are the same, the answer would be 45 degrees.
Step-by-step explanation: A triangle always = 180 degrees. There is a right angle (90 degrees) 180-90= 90. 90/2 = 45
D.) 4x + y
Step-by-step explanation:
3x + x + y
Add 3 x and x .
4 x + y
The answer is 7
x= -36/5, which is also -7.2
you can solve this equation by multiplying both sides of the equation by -6/5
hope it helps