Please Help ASAP :( This is Combinations

5 freshmen, 7 sophomores, 7 juniors, and 5 seniors are eligible to be on a committee.

In how many ways can a dance committee of 15 students be chosen if it is to consist of exactly 4 juniors and exactly 2 seniors, and the rest must be freshman or sophomores?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily