Will mark the brainliest plz

What are the relative frequencies to the nearest hundredth of the columns of the two-way table? a b group 1 102 34 group 2 18 14

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.