Leroy uses 20 pounds of fertilizer to cover 4,000 sq ft of his lawn and 50 pounds to cover 10,000 sq ft. How much does he need to cover his entire yard which has an area of 26,400 sq ft?

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.