The denarius was a unit of currency in ancient rome. suppose it costs the roman government 101010 denarius per day to support 333 legionaries and 333 archers. it only costs 333 denarius per day to support one legionary and one archer. use a system of linear equations in two variables.
can we solve for a unique cost for each soldier?

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)) =

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2

Find the value of x. also give me an explanation so i can complete it to other questions as well, : )