ZA and ZB are complementary angles. If m_A = (x + 16) and m ZB = (x – 12)º, then find the measure of ZA.

David and alton are training for a race. they spend 35 minutes stretching and then go on a 5 mile practice run. david runs at a pace of 7 min/mile. alton runs at a pace of 8 min/mile. write an equation for each runner that shows the total length of their workout. then solve each equation showing your work