A) The regular price of a sweater is $42.99. It is on sale for $34.39. Find the percent of change to find what percent you will save on the sweater. Round to the nearest percent.
B) How many years will it take for $3,241 to earn $680.61 in interest at a simple interest rate of 7%?
C) Stephanie paid $9.18 for a pair of earrings. This amount includes a tax of 8%. What was the cost of the item before tax?
D) A sales person set a goal to earn $2,000 in May. He receives a base salary of $500 per month as well as a 10% commission for all sales in that month. How much merchandise will he have to sell to meet his goal?
E) ERROR ANALYSIS Describe and correct the error in finding the simple interest earned on $500 at 6% for 18 months.
I=500(0.06)(18)
I = 540
F) BANKING A savings account earns 5% annual simple interest. The principal is $1200. What is the balance after 4 years?
G) Clyde Clumsy was directed to weigh a 500g mass on a balance. After diligently goofing off for 10 minutes he quickly weighed an object and reported 458g. Find the percent error.
H) Jamal needs to purchase a counter top for his kitchen. Jamal measured the counter top as 5 ft. The actual measurement is 4.5 ft. What is Jamal's percent of error? Round to the nearest percent.
I) After eating at a restaurant, Mr. Jackson's bill before tax is $52.50. The sales tax rate is 8%. Mr. Jackson decides to leave a 20% tip for the waiter. How much will the total bill be, including tax and tip?
J) A shirt is on sale for 40% off. The sale price is $12. What was the original price? What was the amount of the discount?
Please help!