5 - -10 = 15.
The difference between the actual temperature and the wind chill is 15.
Just do for example on number 38 you will do 6.8/1000= 0.0068 which is the answer
The answer probably is $127 if you add $49+$79=$127
Let O be the point of intersection of diagonals.
Consider triangles FOE and EOD:
FO = OD, ∠FOE = ∠EOD and OE is a common side ⇒
triangles FOE and EOD are congruent.
In congruent triangles all corresponding sides and are congruent ⇒
EF = DE = 6