adv math: simple interest; mark-up and discount

adv math: simple interest; mark-up and discount

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Areli invested a principal of $950 in her bank account with interest rate 3%. How much interest did she earn in 5 years?

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Susana invested a principal of $36,000 in her bank account with interest rate 6.5%. How much interest did she earn in 3 years?

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Jim loaned his sister $5,000 to help her buy a house. In 3 years, she paid him the $5,000, plus $900 interest. What was the rate of interest?

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Hang borrowed $7,500 from her parents to pay her tuition. In 5 years, she paid them $1,500 interest in addition to the $7,500 she borrowed. What was the rate of interest?

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Sean’s new car loan statement said he would pay $4,866.25 in interest from an interest rate of 8.5% over 5 years. How much did he borrow to buy his new car?

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In 5 years, Gloria’s bank account earned $2,400 interest at 5%. How much had she deposited in the account?

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Sergio bought a belt that was discounted 40% from an original price of $29. How much did he pay?

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Oscar bought a barbecue that was discounted 65% from an original price of $395. How much did he pay?

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Lena bought a kitchen table at the sale price of $375.20. The original price of the table was $560. What was the percent discount?

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Nick bought a multi-room air conditioner at a sale price of $340. The original price of the air conditioner was $400. What was the percent discount?

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Jim’s music store bought a guitar at original cost $1,200. Jim marked the price up 50%. What does the music store list the guitar price as?

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The Auto Resale Store bought Pablo’s Toyota for $8,500. They marked the price up 35%. What did the Auto Resale Store list the selling price as?