Edward deposited $8,500 into a savings account 2 years ago. The simple interest rate is 4%. How much money did Edward earn in interest

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

What is the slope of the line (-7,2) (4,6)

Brad earns $12.75/hr and works 40 hours a week. what is his gross annual income?