!NO LINKS, NO FILES!

please :)

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?