Answer:
0.20%
Step-by-step explanation:
11+9=20
(11)^2-(9)^2=40
121-81=40
40=40
+2 each year. 40+(2+y), y being years.
in order
5.
3.
4.
6.
1.
2.
d≈49.02cm
C=2πr
d=2r
Solving ford
d=C
π=154
π≈49.01972cm
