F(x)=8x-16 find the zero algebraically

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?