BC = EF
the side has to lie between the two angles
Angles 1 and 3 are alternate interior angles which is why they are congruent
Answer:The dependent variable is the number of plays he carries the ball.
The independent variable is the number of touchdowns he scores.
The dependent variable is the number of yards he gains.
These are the ones that you need to choose.
Only one because there is one variable and the combined coefficients of x are non-zero.
(0.75(x+40)=0.70(x+20), 0.05x=14-30=-16, x=-320)