Abcd is a cyclic quadrilateral with ab parallel to dc. if angle b is 70 degree find the other angles

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

How many ordered pairs of positive integers satisfy xy=32?