Rashawn makes a wheelchair ramp that descends from an elevation of 5 feet to an elevation of 0 feet. The graph shows how long the ramp must be so that it is not too steep. What is the slope of the line? Show your work. 

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling