Bulb p is rated 60 w, 110 v and bulb q is 100 w, 110 v. which of the bulbs has the higher resistance?

Me because some of question i don’t understand

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

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?