Answer:
277 cm
Step-by-step explanation:
The answer should be M = 5/9(R - 21)
To find this value, follow the order of operations to isolate M.
R = 9/5M + 21
R - 21 = 9/5M
5/9(R - 21) = M
8/3
think it's A (0,6) if not then idk maybe D
