Abbie opened a no-interest bank account with $20, and she de
Carlos opened a no-interest bank account with $28, and he de
Carlos and Abbie do not make any withdrawals from their acco
be used to find w, the number of weeks it will take for the bal
same.
20+14.50w = 28 +12.50w

The answer would be 4 weeks.

14.50 (4) + 20= 78
12.50 (4) + 28= 78

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.