Answer:
C -6
step by step explanation:
since its 2 half circles calculate are for a circle would be area = piR^2
the diameter is 100 feet so radius would be 100/2 = 50 feet
using 3.14 for pi you get 50^2 x 3.14 = 7850 square feet for the circle area
rectangle area = l x w = 100 x 212 = 21200
now add them
21200 + 7850 = 29050 square feet
Recursive formula= a(n)=a(1)(n-1)+d
a(n)= 9(n-1)+2
explicit formula= a(n)= a(1)+(n-1)d
a(n)= 9+(n-1)2
12th row= a(12)=9+(12-1)2
a(12)=9+11(2)
a(12)=9+22
a(12)=31
26 rounded to 30 22 rounded to 20
15 wipe up in keep jdjdjdjd