Answer:
first one is 42
second one is 3/8
Step-by-step explanation:
Answer:
for 10 points yep and its 20 and 30
Step-by-step explanation:
Answer:
<h2>12</h2>
Step-by-step explanation:

Answer:

Step-by-step explanation:
1 Subtract z from both sides.

2 Divide both sides by y

3 Switch sides.

2nd question
Answer: 
Step-by-step explanation:
1 Subtract h from both sides

2 Multiply both sides by j.

3 Divide both sides by k−h.

4 Switch sides.

Answer:
Solution given:
y=6/7x+7
Comparing above equation with y=mx+c
we get
m=6/7
a What is the slope of a line parallel to it?
Since for parallel slope are equal ,
slope will be 6/7.
b What is the slope of a line perpendicular to it?
Since for perpendicular line slope is reciprocal to another line but negative so
slope of line is-7/6.