Answer:
r = 9
Step-by-step explanation:
cross multiply
9 * r = 81
9r = 81
divide both sides by 9
r= 81/9
r = 9
Answer:
The answer is C
Step-by-step explanation:
Just did it on 2020 edg.
Answer:
12 - h
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
There is no slope because it is a strait vertical line.
To solve this, you need to know slope-intercept form;
Where mx is the slope and b is the y-intercept form.
Now, looking at the values you have been provided, you can just plug them into the formula.