How do i solve 89 times 69

How many grams must be adde to 970g to make 1 and a half kg

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.

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?