Landscaping - Fertilizer and pesticide calculations

How many pounds of 10-10-10 fertilizer are needed for a 1,000 sq. ft. area if the soil test report recommends 4 pounds of nitrogen per 1,000 sq. ft.? (lbs/%)

How many pounds of 10-10-10 fertilizer are needed for a 500 sq. ft. area if the soil test report recommends 5 pounds of nitrogen per 1,000 sq. ft.? (lbs/%)

How many pounds of pesticide are needed to treat a 25,000 sq. ft. lawn if the label recommends 2 pounds/1,000sq. ft.?

If the insecticide label recommends 1 teaspoon per gallon, how much insecticide is needed for 5 gallons of water?