Leroy uses 20 pounds of fertilizer to cover 4000 ft.² of his lawn and 50 pounds to cover 10,000 ft.². How much does he need to cover his entire yard which has an area of 26,400 ft.²
so 20:4000=1:200 and 50:10000=1:200 reverse 1lb:200ft^2 100ft^2=0.5lb needs to cover 26400ft^2 100 times 264=26400 so 0.5 lb times 264=132 lb needed for entire yard
