Convert 13/15 into a decimal use long division

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

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