How can we convert 40 minutes and 30 into a equivalent amount of miles

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.