A bigburger has 1/4 pound of meat. A super burger has 1/3 of meat. How much more meat is used for the super burger?

Ineed i do not understand i'm only 8

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