Can someone please help me with this?Thank you :)

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)?

Why is x= 4 a solution to the proportion 14/x 56/1 6

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?