please help with these 3 questions!!

11) Ms. V has a spare tire in her car trunk. The tire moves 40 feet in one full rotation. How much space will the tire take in the trunk of her car? Round your answer to the nearest tenth. 12) Olivia entered a baking contest. As part of the contest, she needs to demonstrate how to measure a gallon of milk if she only has a teaspoon measure. She converts the measurement using the ratios below: 4 quarts 2 pints 2 cups cup 3 teaspoons I gallon 1 quart I pint 4 tablespoons I tablespoon What mistake did Olivia make? Why is it wrong? Show how she would solve correctly. 13) A photocopy of a polygon was reduced by 80% and then the copy was again reduced by 80%. a. Is the second photocopy similar to the original? Explain why or why not. b. What is the ratio of the corresponding sides of the second copy to the original. 11) Ms. V has a spare tire in her car trunk. The tire moves 40 feet in one full rotation. How much space will the tire take in the trunk of her car? Round your answer to the nearest tenth. 12) Olivia entered a baking contest. As part of the contest, she needs to demonstrate how to measure a gallon of milk if she only has a teaspoon measure. She converts the measurement using the ratios below: 4 quarts 2 pints 2 cups cup 3 teaspoons I gallon 1 quart I pint 4 tablespoons I tablespoon What mistake did Olivia make? Why is it wrong? Show how she would solve correctly. 13) A photocopy of a polygon was reduced by 80% and then the copy was again reduced by 80%. a. Is the second photocopy similar to the original? Explain why or why not. b. What is the ratio of the corresponding sides of the second copy to the original