Jen’s age is 2 less than triple her sister’s age. In twelve years, Jen’s age will be 4 less than double her sister’s age. How old are the girls? *PLEASE SHOW WORK AND EQUATIONS*

X= 2 he can buy 2 packs of cards for $12 and an action figure for $3 so he would spend $15 in total plus the free poster

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.