27 39 51 63 what are the next numbers

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

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.

How do you write 600 as a product of its prime factors (index! )