B 43446N Delta Company provides charter buses in the Southern Texas. Bob Smith, the owner. wants to understand how his total trip costs change every year. He recognizes that the cost is neither strictly fixed not strictly variable. He gathers the following information and hires you to estimate the cost formula for Delta's annual trip costs. YEAR NO OF TRIPS TOTAL TRIP COST 2024 10 7 9 2023 11 4 10 2022 22 12 11 2021 100 34 12 13 2020 28 14 14 2019 47 24 15 2018 62 28 16 17 2017 99 35 18 2016 80 24 19 20 21 22 23 A. Use the high-low method to estimate the total trip cost for Delta in 2025 if 55 trips are anticipated. B. Use the regression method to estimate the total trip cost for Delta in 2025 if 55 trips are anticipated