Liam says- (5/12) is equivalent to 5/-12 explain if Liam is correct by completing the statements below, please help!! ASAP

Igor stravinsky tires sells approximately 3,760,000 car tires and 1,200,000 truck tires each year. about 47,000,000 care tires and 26,000,00 truck tires are sold each year in the united states. what is stravinsky's market share in each of these two markets (cars and trucks)?

This is different from the first one can someone me

How do you use the elimination method for this question? explain, because i really want to understand!