Question

Carl puts $1.10 in his penny bank every day in the month of July (31 days). His total savings was $55.00 at the end of June.What's the best estimate for Carl's savings at the end of July?

Answer 1

$60 or something around that range
I think I'm not sure

Answer 2

$89
because 1.10 multiplied by 31 is 34.10
you round that to 34 and add it to 55 which gives you 89