15, if you plot the points, then seperate the x and y into two seperate lines, you can create a 3,4,5 triangle to find the distance between the points.
Answer: 70 square units
Step-by-step explanation:
Area of kite = (one diagonal * another diagonal) / 2
10 * 14 = 140
140 / 2 = 70
Now if the lemonade is 1.50 he can only buy two because the total amount is 8.30 so it will be 3.00 and the amount left will be 5.00 and you can only buy one cupcake so you will buy two lemonades one cupcake