Dakota earned money mowing laws this summer. she put 80% of the money in savings she then spends 25% of the remaining money on music downloads. if she has 99$ left to spend on other things, how much money did she earn this summer?

What is the vertex form of f(x) = x2 + 6x + 3

For what value of x does 4x = (1/8) x + 5?

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)) =