so my calculator said -1×-1=1 within a week it changed now magicly my calculator says -1×-1=0 does anyone know the truth

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)?

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder

25 ! what is the value of x? enter your answer in the box. x =