What type of graph is this

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters