A. 16x^4 + 16x - 16x - 64
C. (4x^2 + 8)(4x^2 - 8)
D. (16x^2 + 209x^2 - 2)
Answer: d . 0.14
Step-by-step explanation: i got it correct on edge
12 pounds multiplied by 31 as there are 31 days in January.
So she will need 372 pounds.
Because all the digits are the same, each digit is worth 10x the one to its right and 1/10 of the one to its left.
This is because we count in base 10. This is also why we can expand this number to become
9*10^6+ 9*10^5+ 9*10^4+ 9*10^3+ 9*10^2+ 9*10^1 +9*10^0.
