What is the sum of the measures of the interior angles of a 27-gon?

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

In the rectangle below ac=30 units what is de

Can someone me out here number 4 plz