PLEASE ANSWER ASAP I WILL GIVE BRAINLIEST Find the amount in my account after 18 years if $150 is initially placed with 2.5% interest compounded semiannually.

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15 units use socratic

step-by-step explanation: 15 units

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees