Answer:
maybe D
Step-by-step explanation:
I'm thinking D because if do

but also it doesn't make 16 when you do

Answer:
n = 14
Step-by-step explanation:
7n +9 = -1+6(n+4)
Distribute
7n+9 = -1 +6n+24
Combine like terms
7n +9 = 6n +23
Subtract 6n from each side
7n -6n+9 = 6n-6n +23
n+9 = 23
Subtract 9 from each side
n+9-9=23-9
n = 14
Answer:
b
Step-by-step explanation:
I dont know 12 but look up the formula for slant height of a hexagonal pyramid. But for the first one
the volume of the cylinder you have to use the formula: V=pi r^2h
V= pi(5)^2(8)
V= 200pi
V= 628.32in^3
Answer:
-3
Step-by-step explanation: