Answer:

Step-by-step explanation:
Answer: 1/4
(Decimal: 0.25)
Step-by-step explanation:
Answer:
r=4
Step-by-step explanation:
Slope=change in y/change in x
r-(-4)/-1-3=-2
r+4=-2*-4
r=4
Answer:
B, 10.5
Step-by-step explanation:
It's actually 10.54, but since you want be to round it, it's 10.5
Hard to say, since you provide no picture or equation.