Find the surface area of the pyramid

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

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)?

Given that abcd is a rhombus, what is the value of x?