Round off 24.67 to one significant figure

In the diagram below, tan θ = sqrt 3. what is the value of m?

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.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer