13.5 is what percent of 45?

Write the equation below the represents the line passing through the point (-3, -1) negative one with a slope of 4

Find the area of a parallelogram with base 15 yards and height 21 2/3

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