Answer:
18 centimeters
Step-by-step explanation:
The formula for finding the perimeter is side + base+side . There for you do 6+6+6
that gives you 18
What is the absolute value of -70.
We have been given the equation

It represents the number of people standing to catch a commuter train x hours after 5 A.M.
Now, in order to find the number of people in line at 7 a.m. , we need to substitute x= 2 in the above equation.

Therefore, the number of people in the line at 7 a.m. is 40
D id the correct option.