2. Jonah's gross income is $85,740. He takes the standard deduction of
$5,700.
a. What is Jonah's taxable income? $80,040
b. How much is Jonah's income tax for the year?
c. Jonah's employer withheld $12,080. How much more does Jonah
owe?

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.