a roller coaster climbs 105 feet on the first hill then drops 30 feet down. on the second hill the roller coaster climbs another 50 feet then drops 20 feet. what is the height at the end of the second hill? write an addition expression and evaluate.

the forst and 3rd

step-by-step explanation:

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

don't report but were is the digram

step-by-step explanation:

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct