Answer:
26.55
Step-by-step explanation:

use the b^2 equation
------------------------
b^2 = 31 squared - 16 squared.
b^2 = 705
b=
b=26.5518361
Answer:
4.9767750498%
Step-by-step explanation:
I don't know if I am right or wrong. But I hope this is the answer!!!
Answer:
r > -1.
Step-by-step explanation:
2r - 1⅔r > -⅓
1/3 r > -1/3
r > -1/3 / 1/3
r > -1.