Yvonne put $4,00 in a savings account. at the end of three years, the account had earned $960 in simple interest. a. how much does she have in her account at the end of three years? b. at what annual simple interest rate did the account grow? how many more dollars would she have in her account if the interest rate were 1% greater?

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits