A) Plot the points
1 A (2,3) and
B (1, -4)on the grid

b) Point C has the
same x-coordinate as B
same y coordinate as A
Plot the point C on the grid

Point D has the
same x-coordinate as the
y coordinate of B
same y coordinate as the
x-coordinate of A
Plot the point D on the grid

What is (28 + 7 + 6 + 3) x 1/2 show your work

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.