A polygon is a quadrilateral if and only it has four sides. Is this a biconditional statement

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year