You are designing an aquarium that is to have a tank holding 225,000 gallons of water. the tank will be 100 feet long and 20 feet wide. note, 7.5 gallons = 1 cubic foot of water. how high will the tank need to be?

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12