1.A digital camera cost $229.the camera is on sale for 30% off and you have a coupon for an additional 15% off the original price.What is the final price

2.The original price of the water skis was $200.The water skis are now $150.What is the percent of discount?

3.A saxophone costs $1200.A store offers two loan options.Which option saves more money if you pay the loan in 2 years?

(The two loan options)

1.$75 cash back with 3.5% simple interist
2.No intertest for 2 years

We'll be glad to check your answers.