Cost accounting

Spic& Span Ltd is estimating it’s fixed and variable costs. The following costs were incurred in January 2022 when 320 homes were cleanedCleaning supplies sh 3500Hourly Wages 5000Depreciation (cleaning machine) 800Marketer’s salary 2000Insurance 500Travelling allowance 1800Rental expense 1000Required: i) Determine the cost function;ii) If cleaning supplies increased with 10% of the total cost for the month, hourly wages reduced by 10% and fixed costs increased by sh 300, formulate the cost formula if 380 homes were cleaned.