If an angle formed by perpendicular lines has a ray in its interior coming from the vertex of the right angle, what do we call the relationship of the two angles? select one: a. right angles b. corresponding angles c. alternate interior angles d. complementary angles

Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 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)) =