So, she has 550 dollars saved. If the junior season pass costs 315, you subtract that from 550. You should then have 235 dollars. Next, you divide 235 by 45 dollars per lesson, and you should get 5.22. You can't buy half a lesson, so she only has enough for 5 lessons.
She is able to take 5 lesson first you are going to subtract 315 from 550, that will leave you with 235, than you are going to divide 235 by 45 which will equal 5 with a remainder of 2.hope i helped
You can go on there website and get there answers on there. Search up delta math answer key, it will lead you that there cite and click on which lesson your in then skip questions until you find the one your at