A=p(1+i/m)^mn
A=11,700×(1+0.039÷4)^(4×18)
A=23,527.94
Independent because what you get in the first one doesn't effect the second
Tangency is when a line is fully outside the circle and touches it in one place.
The point of tangency would be point H
Basically, the unit rate is 1.99/18 or 0.110.
If we round 1.99 to 2.00, we instead get 0.111~
