Investigate the effect of the interest rate on simple interest amortized auto loans by finding the monthly payment and the total interest for a four-year loan of $13,000 at the following. (Round all answers to the nearest cent.)

(a) 7.5%

Payment	$
Total interest	$

(b) 7.75%

Payment	$
Total interest	$

(c) 8.0%

Payment	$
Total interest	$

(d) 9.0%

Payment	$
Total interest	$