Adnan Hassan earned 5% commission as a sales trainee. After promotion to a sales associate, he earned 8% commission. His year-end report showed $673,874 in total sales and $45,006.52 in commission. What did his sales total as (a) a sales trainee and (b) a sales associate?

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.