What type of editing involves helping writers plan and format their work in the beginning and make necessary edits and rewrites when the writer has finished? copy
revising
proofreading
developmental

i honestly do not know bud,, i just really want/need points but ill look it up and get back to you asap! : )

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long  

for this case, we must find the number of deaths per day of the year 2015, in automobile accidents, knowing that 32,400 people died.

knowing that the year 2015 had 365 days we have the following division:

where "x" represents the number of deaths per day.

rounding off we have:

approximately, 89 people per day died in 2015

answer:

89 people per day

your answer is c) experiments with water vapor showed that elements combine in specific proportions.