Given that R is the midpoint of Qs , QR = 3x+6 and RS = 5x find QS

Which shows the pre image of triangle xyz

How do i do this activity, is appreciated

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