Need help with math problem if do get 5 star

1. - 15 1/2 feet

2. 62 3/4 feet

3. 0 feet

Step-by-step explanation:

1. Descend means negative, so the answer needs to have a negative sign.

2. Above sea level means positive, so the answer needs to have a positive sign.

3. There is no change in position, so the answer needs to be 0.

hope this helps and is right!! p.s. i really need brainliest :)

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer