1/2(-4+6n)=1/3n+2/3(n+9)

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

Which expression and diagram represent “renee biked four times as far this month as last month”?

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?