If 2cm represents 75 miles on a scale drawing how long would a line segment be that represents 50 miles

Average acceleration: i have no idea how to do this.

How many grams the dog will eat in 3 days?

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.