HURRY ( no links please ) Mrs. Wright spent $52 on new music books. For new piano students, she charges a $4 new-student fee plus $12 per 45-minute session. Drag the solution to the number line to show after how many sessions Mrs. Wright will earn a profit for giving piano lessons to one new student.

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