Which statement is true? (geometry)

i couldn't fit the 4th answer in which is;
lines dh and fg are parallel.

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)?

What percent of the circle below is shaded?

How are sas and sss used to show that two triangles are congruent?