Write a function in the form y=mx+b for the line that contains the point (-8.3, -5.2) and (6.4, 9.5)

The sum of two numbers is 12 and their difference is 18 what are the two numbers

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

What is the ratio fraction form of 25: 9