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the coordinate plane below represents a city. points a through f are schools in the city.
part a: using the graph above, create a system of inequalities that only contain points d and e in the overlapping shaded regions. explain how the lines will be graphed and shaded on the coordinate grid above. (5 points)
part b: explain how to verify that the points d and e are solutions to the system of inequalities created in part a. (3 points)
part c: timothy can only attend a school in his designated zone. timothy's zone is defined by y < 3x − 3. explain how you can identify the schools that timothy is allowed to attend. (2 points)

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)) =