In a random sample survey of 80 students at Torrey’s middle school, 24 students said that math was their favorite subject. There are a total of 300 students at this middle school. Based on the survey, which value is the best estimate for the number of students who would say that math is their favorite subject? Select one:

244

72

90

150

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827