Please help with this one question that I've been stuck on!!! In a random sample of 74 homeowners in a city, 22 homeowners said they would support a ban on non natural lawn fertilizers to protect fish in the local water ways. The sampling method had a margin of error of ±3.1%. SHOW ALL WORK! A) Find the point estimate.
B) Find the lower and upper limits and state the interval.
Please show your work & how you got your answer!

Anders Celsius (Swedish pronunciation: [ˌanːdəʂ ˈsɛlːsiɵs], 27 November 1701 – 25 April 1744) was a Swedish astronomer, physicist and mathematician. He was professor of astronomy at Uppsala University from 1730 to 1744, but traveled from 1732 to 1735 visiting notable observatories in Germany, Italy and France. He founded the Uppsala Astronomical Observatory in 1741, and in 1742 proposed (an inverted form of) the Centigrade temperature scale which was later renamed Celsius in his honor.

Romeo and Juliet is a tragedy written by William Shakespeare early in his career about two young Italian star-crossed lovers whose deaths ultimately reconcile their feuding families. It was among Shakespeare's most popular plays during his lifetime and, along with Hamlet, is one of his most frequently performed plays.