1) It takes him ac minutes to run his train(s) around the track.
a being the time it takes to move ONE train around the track,
c being the number of trains.
When he has 5 trains, it is just 5 times that, since they are both proportional.
5ac
2) A) EG corresponds with BD, since they are both the hypotenuse.
Integer solutions doesn't exist.
b*h/3 is the formula to find the volume (or area whichever it is) of a pyramid so it will be 16 times 30 divided by 3 which would get u to 480/3 which would then get u to 160 cm
The equation of the line for this question can be stated as,
What does y = when x is -1 or
What does x = when y is 2
So since the slope of the line is 2, we can assume that B and C must be the answers but since you want one answer we need to be more accurate.
The answer is C
Because when y = 0 x = -1 and when y = 2 x = 0