Find the percent increase from 15 to 18

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Given: prst square pmkd is a square pr = a, pd = a find the area of pmct.