Stacy goes to country fair with her friends the total cost of rides tickets is given by the equation c=3.5t where c is the total cost of tickets in t is the number of tickets

if stacy bought 15 tickets she would spend?

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.