3 1/4 - 1 3/8 (please help)

6.3x+14 and 1.5x-6 answer in simplified form

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 type of graph would allow us to quickly see how many students between 100 and 200 students were treated?