How much interest will you pay in one month with a balance of $3564 and apr of 15.4%

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

What is the first step of an indirect proof of a number that is divisible by two

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.