Its 10:00 according to the Khan academy

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

On saturday a souvenir shop had 125 customers. sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0