Y - 15 = -15 what's the answer

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

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

In triangle abc, angle c is a right angle. find the value of the trig function indicated. find tan a if c = 17 and a = 8