D
7•4 =28, -5•0 =0... 28+0=28
Answer:
14
Step-by-step explanation:
10 is a multiple of 5
then you just add four
Firstly , we can draw diagram
we can see that
adjacent = 850
opposite =250
so, we can use tan formula


16.38

so,
angle of depression is 16.38 degree........Answer
B. 57,800
14,300+14,400+14,500+14,600=$57800