công ty có nhu cầu 100 triệu đồng, với hợp đồng vay kỳ hạn 6 tháng, lãi suất 1,2%, thanh toán lãi trước, phí tổn thủ tục là 5%, số dư bù trừ 10%. cần hợp đồng vay là bao nhiêu

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

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)) =

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.