Answer:
x= 175°
Step-by-step explanation:
angles in a triangle add up to 180 degrees
85 + 90 = 175
180 - 175 = 5 (the missing angle not x)
angles on a straight line add up to 180 degrees
180 - 5 =175
We could stop here and have answered the question.
Answer: 
1. 4x + 2y = 11
x - 2 = -2y
First I would isolate one of the variables (x or y) of one of the equations, and then substitute it into the other equation.
The easiest to isolate is the "x" in the second equation
x - 2 = -2y Add 2 on both sides
x = -2y + 2
Substitute this into the first equation
4x + 2y = 11
4(-2y + 2) + 2y = 11 Multiply 4 into (-2y + 2)
-8y + 8 + 2y = 11 Combine like terms
-6y + 8 = 11 Subtract 8 on both sides
-6y = 3 Divide -6 on both sides
y = -3/6 Simplify
y = -1/2
Now that you know "y", you can plug it into either of the original equations to find "x"
x - 2 = -2y
x - 2 = -2(-1/2)
x - 2 = 1 Add 2 on both sides
x = 3
Answer is A
2. y = 3x + 5
4x - y = 5
Substitute the first equation into the second equation
4x - y = 5
4x - (3x + 5) = 5 Multiply/distribute the - into (3x + 5)
4x - 3x - 5 = 5 Combine like terms
x - 5 = 5 Add 5 on both sides
x = 10
Plug in "x" into either of the original equations to find "y"
y = 3x + 5
y = 3(10) + 5
y = 30 + 5
y = 35
Answer is A
(20+4)x4 multiply 4x20=80 and 4x4=16. Add 80+16 and get 96.
The answer is 16
exsplain:
24 divided by 6= 4
4x4=16
For every 6 blue beads Julie used she used 4 green and she made 4 brackets so times 4x4 getting you to 16! Hope this helps
