Flavia plotted the distance-time graph of a car traveling 40 miles per hour. jenya plotted the distance-time graph of a car traveling 50 miles per hour. how are the graphs similar? how are the graphs different?

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant.given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.