Yolanda's collection has 2 times as many sports cards in it as Antonio's collection. Together, they have 18 sports cards. How many sports cards are in Yolanda's collection? How many sports cards are in Antonio's collection? The following sentence is followed by a list of options within a dropdown menu. Select the person with more sports cards: Enter the number of sports cards in Antonio's collection. Enter the number of sports cards in Yolanda's collection.

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Someone answer asap 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)) =

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle