Answer:
56
Step-by-step explanation:
The mistake was on your second step where you took b to be +6, yet it has to be -6.
you must add all together 60. 43 .
24, 91
Step-by-step Explanation:
308 cm³
volume of cylinder = πr²h
volume = (22/7)*(7/2)*(7/2)*8
volume = 308cm³