Please help me and explain how do I rearrange this equation to become y=mx+b form? THANKS!!!

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

Find the value of x for which the lines are parallel.

Do,h = (7, 9) (14, 18) the scale factor is