In the diagram of trapezoid ABCD below, AB || DC, AD = BC, m2A = 4x + 20, and mC = 3x - 15.

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x, and the distance in miles, y, that he travels.