For which of these would you use a histogram to show the data : The number of cassettes produced by 5 companies.Give reasons for each

For which of these would you use a histogram to show the data : The height of competitors in an athletics meet.Give reasons for each

For which of these would you use a histogram to show the data : The number of letters for different areas in a postman’s bag. Give reasons for each

For which of these would you use a histogram to show the data : The number of passengers boarding trains from 7:00 a.m. to 7:00 p.m. at a station.Give reasons for each

Name two energy sources that you would consider to be renewable give reasons for your choice.

A company manufactures cassettes and its cost equation for a week is C = 300 + 1.5 x and its revenue equation is R = 2x, where ‘x’ is the number of cassettes sold in a week. How many cassettes must be sold for the company to realize a profit ?