Mitchell is a big coffee fan, so he always takes care of coffee brewing at the office. normally he uses 100 grams of robusta coffee to prepare 10 cups of coffee. his friend brings him a packet of arabica coffee and tells him that he should use 20% more than usual when brewing arabica coffee. how many grams of coffee should he use to make a 15-cup pot of arabica coffee?

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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?