What is 3 multiplied by 5/8 as a mixed number

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)