Use the results from example 27 to determine the next time a commuter train and subway train will both be leaving the station at the same time? ( the result from #27 is 30

What is the value of x? enter your answer in the box. (cm)

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)