Write an expression to represent the area of a trapezoid which can be found my multiplying the height of the trapezoid by half of the sum base one and base two

Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?

What is the equation of a line that passes through points (0, 4) and (-4,-8)?

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno nina made two errors in the proof. identify and correct the errors.