Please help ill give you a much point as I can just need help on this question?!..

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

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Two numbers have a sum of -19. one number is x. what expression represents the other number?