Jamal was riding his bike home at a speed of 12 mph on his trip out he had traveled 8 miles away from his home he had been traveling for a half hour at this speed how far away from home is he

Rearrange Speed=Distance/Time to get Distance=Speed×Time. Put in the numbers.
D=12×0.5
=6 miles
8-6=2 miles
He is 2 miles from home.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .