Replace x with 3:
f(x) = 20(0.5)^x
f(3) = 20(0.5)^3
First do 0.5^3 = 0.125
Now multiply that by 20:
20 x 0.125 = 2.5
f(3) = 2.5
Answer:
12
Step-by-step explanation:
here is your answer
Calculation steps:
percent- 40%
decimal- 0.4
percent- 2/5
you divide 30 by 12 because he practices piano 12/30 days of the month
a or c would be your answer hope this helps
514.5552
:)
