I need solve this questions

Question S An auto-repair shop faces the following weekly costs: rent, $800; labour, $500 per worker, parts and supplies, $70 per repair. Each worker can repair four cars por week. Copy & paste the table below into the answer area. Then complete all questions. (a) Fill in the costs in the table. (4 marks) (b) What are the total costs if the shop repairs 16 cars in a week? (2 marks) (c) What are the total costs if the shop repairs no cars in a week? (2 marks) Number of repairs Fixed costs ($) Variable costs (S) Total costs ($) 0 8 12 16 20 24