for 1st
use the formula of inlargement
A(x,y)when enlarging by scale factor k gives A'(kx,ky)
for 2nd
a=
(2a+3)-(a-5)(2a+2)+a^2
b=
3y(7y-8)
The answer is 48, because 6*8=48, 16*3 = 48, 24*2 = 48.
-5 + n = -15
-15 + 5 = n
-10 = n
Answer:volume of cone = 170.5 ft³
Explanation:The volume of the right circular cone can be calculated as follows:
volume =

We are given that:
diameter = 6.1 ft.......> This means that: radius (r) = 6.1 / 2 = 3.05 ft
height (h) = 17.5 ft
Substitute with the givens in the above equation to get the volume as follows:
volume =

volume = 170.477 which is approximately 170.5 ft³
Hope this helps :)
The mean height would be 155