Two airport shuttle trains leave the main station at the same time. Shuttle A returns to the station every 8 minutes.

Shuttle B returns to the station every 10 minutes.

In how many minutes will Shuttles A and B leave the station together for the second time?

A. 10 minutes
B. 80 minutes
C. 40 minutes
D. 18 minutes

Please show your work

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to

i dont know the answer but here's a picture of a dog

      2

  2 is to go somewhat to the top right of a because it is squared    

v= a h/3