At around 20'000ft. and higher.
Answer:
slope is 2
Step-by-step explanation:
Find two points that can be used.
(0,4) (2,8)
Use the slope formula and plug in the numbers



=2
Answer:
r=0
Step-by-step explanation:
7r-5r+8=9r+8-r
This is already an equation
Combine like terms
2r+8 = 8r+8
Subtract 2r from each side
2r-2r +8 = 8r-2r +8
8 =6r+8
Subtract 8 from each side
8-8 = 6r+8-8
0 = 6r
Divide by 6
0/6 = 6r/6
0 =r
X=2/3
Distribution the 3 to (x+3) and then solve for x by getting x by itself
1 plus to the negative Peter plus the relative integers