Answer:
-5 is the slope and -6 is the y intercept
Step-by-step explanation:
This is in the form
y =mx+b where m is the slope and b is the y intercept
y = -5x -6
-5 is the slope and -6 is the y intercept
This is a systems of equations.
s = stamp, e = envelope

Substitute e + 9 for s.
.1(e + 9) + .13e = 2.51
Simplify.
.1e + .9 + .13e = 2.51
Simplify.
.14e + .9 = 2.51
Subtract .9 from both sides.
.14e = 1.61
Divide both sides by .14.
e = 11.5
Now, you can input e into the other equation.
11.5 + 9 = s
Simplify.
20.5 = s
s = 20.5, e = 11.5
Answer:
1) Domain: -3<x<∞
Range: -4≤y<∞
2) Domain:-∞<x<∞
Range: -∞<y<∞
3) Domain: 1<x<3
Range: -1<y<∞
4) Domain: -3<x<4
Range: -1<y<4
5) Domain: -3≤x<2
Range: -6<y≤-3
6) Domain: -∞<x<∞
Range:0≤y<∞
Step-by-step explanation:
I'm too lazy to explain this sorry if you really want to know how lmk in comments and try to explain
Answer:
The answer is -3
Step-by-step explanation:
1. Distribute -7z + 21 = 42
2. Subtract 42 - 21 = 21
3. -7z = 21
4. Divide 21 / -7 = -3
5. Answer is -3