Movie tickets for senior citizens cost 0.9 times as much as regular adult tickets. adult tickets cost 10.75. how much do senior citizens tickets cost? pls use an equation

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

1. what is the measure of ∠abc? what is the measure of ∠abd?

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)?