For number 6, we know that Amber rides 30 miles in 2 hours, so she rides 15 miles in one hour. As a result, I have this equation which is d=15t which is B. For number 7, to find the proportional in 3 pounds at $2.67, so I just need to find how much does it cost to buy one pounds of onion which equal $0.89, now I just take $0.89×5 which equal $4.45 for 5 pounds, so to find the proportional between the two of them which $4.45/5 pounds which is C. Hope it help!