What is the perimeter of this pentagon? a. cm b. 1 cm c. 2 cm d. 2 cm

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

10 points? me . its important ‼️‼️

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.