Manuel buys7.9 pounds of strawberries. each pound costs $3.89. which expression gives th best estimate of the cost of the strawberries?

3.89(7.9) = 30.73

3.89s where s = lbs of strawberries

Step-by-step explanation:

Its {8}{4$}

Step-by-step explanation:

because 7.9 rounds up to 8 and 3.89 rounds up to four.