7a. 15 yards = 42 feet therefore the answer is > (Greater than).
7b. 5 tons is 10,000 lbs because 1 ton = 2000lbs therefore the answer is > (Greater than)
7c. 1 quart equals 2 pints therefore 5 quarts equals 10 pints making this = (Equal to).
7d. 600 yards is equal to 0.34 miles therefore the answer is > (Greater than)