This hyperbola is centered at the origin. Find its equation.
Foci: (-9,0) and (9,0)
Vertices: (-2,0) and (2,0)

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)?

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?