Answers by visitors named: MathTween

12 months = 1 year and there are 2 years so, 12*2=24 months. He changed his tires every 4 months so, 24/4=6. So, Isaiah will have changed 6 tires in 2 years. I did this the EXPLAINING WAY. THAT'S ALL FOLKS! GOOD NIGHT!
If then That's all I can do for you since I don't know whether you mean or . Either way, there will be two answers depending on the signs of and John My calculator said it, I believe it, that settles it