Answer:
Step-by-step explanation:
If the input is 2 and the output is 6, then f(x) = 3IxI
Answer:
37.6
Step-by-step explanation:
The formula of the Simple Interest is:
I=PRT
P for Principle Amount ($1200)
R for Rate (5%=

= 0.05)
T for Time in years (4 years)
I = 1200 × 0.05 × 4
= $240
Add the interest to the principle amount to check the balance
$1200 + $240 = $1440
-1(x)= 5x+15inverse of the function