What is the percent increase for a house that sells for $66,000 and then later for $139,000? Round to the nearest percent.

You are making a special hot chocolate that costs you $0.92 per serving. You wish to have a beverage cost percent of 20%, what should be the new price of the hot chocolate?

Mai borrowed $5000 from a bank for 5 years and was charged simple interest. The total interest that she paid on the loan was $1500. As a percentage, what was the annual interest rate of her loan? If necessary, refer to the list of financial formulas. []% ?