Amanda and stephen wrote the following proofs to prove that vertical angles are congruent. who is correct? line segment nt intersects line segment mr forming four angles. angles 1 and 3 are vertical angles. angles 2 and 4 are vertical angles. amanda's proof statement justification ∠1 + ∠4 = 180° definition of supplementary angles ∠3 + ∠4 = 180° definition of supplementary angles ∠1 + ∠4 = ∠3 + ∠4 transitive property of equality ∠1 ≅ ∠3 subtraction property of equality stephen's proof statement justification ∠1 + ∠2 = 180° definition of supplementary angles ∠2 + ∠3 = 180° definition of supplementary angles ∠1 + ∠2 = ∠2 + ∠3 transitive property of equality ∠1 ≅ ∠3 subtraction property of equality

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)) =