The distance that light travels in 1 second is 186,000 miles. how far will light travel in 1 year? (there are approximately 31,500,00 seconds in 1 year. ) change the numbers to scientific notation and then perform the appropriate operations.

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

What are “like terms”? why can we only add like terms?