Erica’s parents gave her $400 for her high school graduation. She put the money into a savings account that earned 6.5% annual interest. She left the money in the account for 15 months before she withdrew it. How much interest did the account earn if interest is paid monthly?

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.

Solve 2^x=32 and rewrite this equation in a logarithmic form

Which of the following circles have their centers in the third quadrant? check all that apply.