Answer:
2: addition
3: subtraction
4: division
5: subtraction
6: division (I think)
7: addition
8: subtraction
9: multiplication
10: addition
12: n/10
13: n+6
14: 9x(n-5)
15: 4n-1
16: 50+40h
Step-by-step explanation:
you said its easy so i assume you know how to do it
12) the radius is 15 so with the equation (3.14)*r^2, we get (3.14)(15^2)=706.5
13) true, true (if x=4), true
14) y=0.75x+4.50, $8.25
about 120