Cool tees is having a back to school sale where all t-shirts are discounted by 15%. Joshua wants to buy five shirts: one cost $9.99, two cost $11.99 each, and two others cost $21.00 each. What si the total cost of the shirts including the discount?

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.

It is e) i am not sure if you have any questions or need any

Bis the correct answer