Bill earns 1 dime the first day, 2 dimes the second day, 3 dimes the third day, 4 dimes the fourth day, etc. How many days will it take him to earn $2.

Answer 1

On day 4 he has $1.00
Day 5: 1.00 + 0.50 = 1.50
Day 6: 1.50 + 0.60 = 2.10