Which of the following equations are equivalent to-2m-5m-8 #) + m? d-15m-4md: 7m-8-rn-4□-3m-8-4-m□m-4.7m-8-8.7m- 4-m□-8.3m-4-m

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Standard deviation of 19,29,21,22,23

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.