a species of extremely rare, deep water fish are slowly becoming extinct. If there are a total of 821 of this type of fish and there are 6.5% fewer fish each year, how many will there be in 6 months?

Which system of linear inequalities is represented by the graph? + l tv x-3y > 6 and y > 2x o x + 3y > 6 and y o x-3y > 6 and y> 2x o x + 3y > 6 and y > 2x + 4 la +

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.

Find the maximum value of p= 4x + 5y subject to the following constraints :