Find the median and mode of the data

16,24,13,36,22,26,22,28, and 25

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square