Carlos wants to have an average of at least 90% on his tests for semester 1. So far he has scored: 95%, 87%,
and 88%. What is the minimum he must get on the next
test to maintain the 90% average?

You're gonna need to post the table

Just a question- could you organize the data better? i just cannot tell which number are for which bakery. i will be happy to answer this question if you could do this for me! : )

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.