Question

Justin's hair is 314314 inches long. How long will it be in 22 months if it grows 1212 inch each month? Which method will NOT give the correct number of inches? Multiply 2×122×12, and then add 314314. Multiply 314×2314×2, and then add 1212. Add 314+12+12314+12+12. Multiply 12×212×2, and then add to 3+143+14.

Answer 1

3 1/4 inches long,
1/2 inch in 1 month1 inch in 2 months
The answer is, 3 1/4 inches + 1 inch = 4 1/4