Awelder must cut a piece of metal so that it fits tightly into its spot. the welder cuts 9/16 of an inch off the metal so that it measures 3 3/4 inches. what was the size of the original piece of metal?

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

What is the measure of angle afe? 79 81 91 99

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?