Mr. chan buys a roll of paper towel for $2.19 a bottle of window cleaner for $2.69. in this state there is a 4 percent sale tax on these items. mr. chan also buys a gallon of milk for $3.95. there is no sales tax on milk. mr. chan has a $5 coupon to usr at the store.

b1) write a number sentence to find mr. chan's total bill. what is his total bill?

b2) is there more than one way to compute this total?

b3) explain how you know which operation(s) to use.