Yo guys whats good, can you guys help me find the angles pls

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)