In Rough water, a small sand dollar burrows - 1/2 centimeter into the sand. A larger sand dollar burrows - 1 1/4 centimeters into the sand. Which sand dollar burrowed deeper?

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.