500
Mosquitoes are annoying insects. To eliminate mosquito larvae, a certain granular substance can be applied to standing water in a ratio of 1 tsp per 25 sq ft of standing water.
a. At this rate, find how many teaspoons of granules must be used for 450 square feet.
b. If 3 tsp = 1 tbsp, how many tablespoons of granules must be used?
What is
a. 18 teaspoons
b. 6 tablespoons