Four new students have to be assigned a tutor. there are seven possible tutors and none of them will accept more than one student. in how many ways can the tutor assignment be done?

Ana earns 2.5% simple interest on $2,000 in her savings account. she does not make any deposits or withdrawals. after 3 years, how much interest will ana have earned on her savings account?

The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)

Two numbers have a sum of 93. if one number is p, express the other number in terms of p.