Someone help me with this because i am so dum

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)?

In what organelle does photosynthesis take place?

Acircle has a circumference of 7.850 units. what is its radius?