Answer: 21 . . . . . .
Credit to the person below-
Answer:
A right circular cone
Step-by-step explanation:
A
You should follow PEMDAS with this.
x=5x66=300
There are 401 terms.
The first term is 37 (subtract 36 to get 1st). The last term is 437 (subtract 36 to get 401st).