John is hiking in the san juan national forest. every 4 hours his elevation increases between 140 and 210 feet. 36 hours ago, john's elevation was 5,700 feet. which is a reasonable measure of john's elevation now?
a.
7,230 ft
b.
6,930 ft
c.
8,780 ft
d.
7,610 ft

Answer D. It is the closets answer to my calculations so im sorry if im wrong

no ,sorry if you needed it but you can ask and try to see if any one will anwser ,

step-by-step explanation:

by good luck mark me as brainliest

have a nice day

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.