I need to find the Quadratic equation

Landon wrote that 3−2.6=4. which statement about his answer is true?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets