Please help- im so bad at this TvT

Step-by-step explanation:

10)-2

11)-11

12)-9

13)75/-25=-3

14)-30/-15=2

15)-20/5-5

=-4-5

=-9

16)90/-45=-2

17)-45/-15=2

18)-15 times 5/25

=-75/25

=-3

19)-15-(-45)/10

=-15+45/10

=30/10

=3

20)5-5/-1

=0/-1

=0

21)-(-15)/5

=15/5

=3

22)-45-15/-15

=-60/15

=-4

23)-15+(-45)/-5

=-15-45/-5

=-60/-5

=12

Have a nice day! :)

-Vana

£56

step-by-step explanation:

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !