Answer:
3x+y=-31
Step-by-step explanation:

Slope of perpendicular line is -3.

Sub in the point (10, -1)

Answer:
-18
Step-by-step explanation:
Essentially the same as (-6) - 12
The common ratio is -5, note that each value is the previous value multiplied by -5.
Answer:
Prime
Step-by-step explanation:
Answer:
Step-by-step explanation:
6f - 1 + 7f - 8 = 6f + 7f - 1 - 8
= 13f - 9
Combine like terms. Like terms have same variable with same power.