https://www.calculatorsoup.com/calculators/math/gcf.php
A link to a helpful calculator.
If its greatest common facter.
Otherwise I can give you another link to a different calculator.
Answer:
40
Step-by-step explanation:
here is a trig calculator
http://www.carbidedepot.com/formulas-trigright.asp
Total interest paid:
$83.73
Total payments:
$333.73