Please help i will do anything!!

Is the orthocenter of a triangle on the inside ?

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

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane