Stickers are sold in packages of 15 sheets. If there are 20 students in the class, how many packages of stickers should the teacher buy so that every student gets the same amount of sheets, with none left over?

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?

Re-do the question and enter the picture