Find a, b, and n of the factored form of the binomial expansion. 16x^4 + 480x^3y + 5,400x2y^2 + 27,000xy^3 + 50,625y^4

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

The stairs leading from the ground to the entrance of a plane forms a right triangle with the ground. if the distance of the stairs measures 22 feet and the ground distance measures 11 feet, how high is the entrance to the plane from the ground? which diagram represents this scenario? / 22ft © 22ft 11 ft 11 ft 22 it

Im so bad at fractions they are not my best math thing to work on