Declan downloaded a game that cost $18. He has d dollars on the gift card he used to download the game. After downloading the game, he has more than $30 on the gift card. Write and solve an inequality to determine the number of dollars he had on the gift card before downloading the game.

The system of equations graphed below has how many solutions?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

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)) =