[code][/code]Answer each question and explain or show your reasoning. If you get stuck, consider drawing a double number line diagram.[br][br]1. Eight avocados cost $4.[br] a. How much do 16 avocados cost?[br] b. How much do 20 avocados cost?[br] c. How much do 9 avocados cost?[br][br]2. Twelve large bottles of water cost $9.[br] a. How many bottles can you buy for $3?[br] b. What is the cost per bottle of water?[br] c. How much would 7 bottles of water cost?[br][br]3. A 10-pound sack of flour costs $8.[br] a. How much does 40 pounds of flour cost?[br] b. What is the cost per pound of flour?[br]