Step-by-step explanation:
(6+r)^2 = 81 + r^2
36 + 12r+ r^2 = 81 + r^2
12r = 81-36 = 45
r = 15/4 = 3.75
Answer:

Step-by-step explanation:
check with a ruler if you don't have a ruler chest thing and redo the the repo r e p r e s e n t s
Answer:y=Mx+b
Step-by-step explanation:
Answer:
yeah, its 64
Step-by-step explanation: