If you leave your house at 1:00 and get to your friends house at 5:00, what was your average speed

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

Ineed with math stuff it involves graphs

Solve -.016x= -16. need solving this