Answer:
$482.11 in interest
Step-by-step explanation:
Use the compound amount formula. Calculate the compound amount and then subtract the principle to find the amount of interest earned.
A = P(1 + r)^t, where r is the interest rate as a decimal fraction
This becomes:
A = $575(1 + 0.07)^9, or A = $1057.11.
Subtracting the principal: A - P: $1057.11 - $575 = $402.11
Answer: (18 + 12) - 50
Step-by-step explanation:
A is the correct expression.
If you would like to solve for x, you can do this using the following steps:
7x + 15 = 38
7x = 38 - 15
7x = 23
x = 23/7
The correct result would be 23/7.