Answer:

Step-by-step explanation:
use the website math_way. Literally just type math_way into a search engine, then it will be the first thing to come up.
Answer:
the first one?
Step-by-step explanation:
he went up 9 floors so you'd add 9 and down 7 floors so you'd subtract
15, 1 ground beef cost $5
The answer I believe is 7
Answer:
Step-by-step explanation:
27π=120°/360°*πr^2
81π=Area of circle