Final answer:
The amount to repay for a loan of $2,439 is $141.76, and the annual interest rate charged by the company is 17.46%.
Step-by-step explanation:
a) To calculate the amount you will repay, you need to determine the daily cost of borrowing $500.
According to the radio commercial, you only pay $29 per day for each $500 borrowed.
So, to calculate the amount you will repay for a loan of $2,439, you divide $2,439 by $500 to find out how many $500 increments you are borrowing.
$2,439 / $500
= 4.878.
Then, you multiply that by the daily cost of $29 to find out how much you will repay per day.
4.878 x $29
= $141.762.
b) To calculate the annual interest rate, you can use the formula:
Interest = Principal x Rate x Time
Given that the loan term is 278 days (less than a year), we can calculate the interest amount:
$2,439 = $500 x Rate x 278
Dividing both sides of the equation by $500 x 278 gives us:
Rate = $2,439 / ($500 x 278)
= 0.1746
To convert this to a percentage, we multiply by 100:
Rate = 0.1746 x 100
= 17.46%