6) The average Mathematics mark for Amin, Azman and Aziz is 73. Azman's mark is 35 more than Amin while Aziz's is twice of Amin's. What is the Mathematics mark of Amin?

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Someone answer this asap rn 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)) =