Answer:
28
Step-by-step explanation:
First, you start with 11-4, which equals 7.
Then, you multiply 7x8 which equals 56.
Lastly, you divided 56 by 2, getting 28.
Answer:
396°
Step-by-step explanation:
Difference = 357 -(-39) = 357+38 = 396°
Answer:

Step-by-step explanation:
Given

Required
Solve

Split:
and
Collect Like Terms
and 
and 
Combine

Answer:
-1/2
Step-by-step explanation:
First you use to the formula m=y2-y1/x2-x1 and then you get -5/10 or -1/2. (m= slope)
Answer:
z + 12 = 9
Reorder the terms:
12 + z = 9
Solving
12 + z = 9
Solving for variable 'z'.
Move all terms containing z to the left, all other terms to the right.
Add '-12' to each side of the equation.
12 + -12 + z = 9 + -12
Combine like terms: 12 + -12 = 0
0 + z = 9 + -12
z = 9 + -12
Combine like terms: 9 + -12 = -3
z = -3
Simplifying
z = -3
Step-by-step explanation: