For every gallon of gas used, 4 ounces of oil should be added. how much gas is needed if 12 ounces of oil are used

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

For how answer my question this will be the last question can you answer in math subject

Which is a graph of a proportional relationship?