Part A) 27.93/7 for small bags and 66.98/20 for large bags Part B) $3.99 for small bags and 3.35 for large bags Part C) the large bags is the better buy because the small bags are $0.64 more than the large bags.
A=-112 bcs -216 ft is down from sea level and -104 is also down from sea level bcs both values are in minus but -104 is higher than other so you can minus it from -216 the difference is the answer b=-109
