David has $17000 to invest. he invests $12000 in a mutual fund that pays 12% annual simple interest. if he wants to make at least $2200 in a yearly interest, at what minimum rate does the remainder of the money need to be invested

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.