Anthony has a cup full of nickels and dimes worth $6.80. There are 82 coins all together.
Which of the following systems of equations correctly models this situation?
x+y= 680
5x+10y = 82
B. 5x+10y = 680
x+y=82
5x +y = 680
x+10y = 82
D. 5x+y=82
x+10y = 680

If f(x)=2x^6+x^2+2 then what is the remainder when f(x)is divided by x+2

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

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)) =