Which of the points shown below are on the line given by the equation y = 2x check all that apply a. point a: (1,2) b. point b: (-1,-2) c. point c: (4,2) d. point d : (0,2) need asap

What number produces an irrational number when multiplied by -1.25

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)) =

[15 points, algebra 2]simplify the complex fraction and find the restrictions.