Austin has a jar of pennies in his closet and it had 278 pennies in it. 3 weeks later, his grandfather told him that when he was 5th grade, you could ride the bus for 7 cents. If austin get back to time to when hsi grandfathr was in 5th grade. How many bus would he be able to pay for just using the pennies in his jar. Note, write your answer as a whole number in standard form. (I answer either 39 or 40 still wrong). Need help please.