Anna browne bought a suit at a 25% off sale. the suit had been marked $100. how much did she save by buying on sale ?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Find the nonpermissible replacement for binthis expression.b2/5b +5

Solve the triangle. a = 21°, c = 105°, c = 5