Question

Please help me Please zoom in pic so its not so blurry ive gotten wrong answer my husband tried helping me please help

Answer 1

We will have the following:

a) We have that in order to determine how much lower is checkpoint 1 than checkpoint 2, we find the difference between those values, that is:

$x=-163-(-39)\Rightarrow x=-124$

So, checkpoint 1 is 124 ft lower than checkpoint 2.

b) To determine the altitude of the hill we will operate as follows:

$a=-163+232\Rightarrow a=69$

So, the top of the hill is 69 ft above sea level.