1. A tennis racket normally cost $65. The tennis racket is on sale for 20% off. What is the sale price of the tennis racket?

2. You deposit $1200 in a savings account that earns simple interest at a rate of 3% per year. How much interest will you have earned after 4 years?

3. A beauty salon buys bottles of styling gel for $4.50 per bottle and marks up the price by 40%. For what price does the salon sell each bottle?

4. You deposit $150 in a savings account that earns simple interest at a rate of 5.5% per year. How much interest will you have earned after 4 years?

Guest Sep 21, 2017

#1**0 **

The equation you would use is I= P*( Money started with)* * r*(Percent in decimal form)* * t*(Time in years)* for the intrest questions

The equations you would use for the sale questions is (money * *percent in decimal=x) then do (money-x) for sale or (money+x) for markup*

*1.) *65*.2= 13, then do 65-13= $52

2.)1200*.03*4= 144$

3.)4.50*.40 then do 4.50+1.80= $6.30

4.)150*.55*4=$330 earned

I might be wrong with these so other people reply to correct me please so I can correct it!

NediaMaster
Sep 21, 2017