David and Lacey are 2000 feet apart on a coastline They each look at the same boat in the water. The angle between the coastline and the line from David to the boat is 70°. The line between the coastline and the line from Lacey to the boat is 32°. How far is David from the boat?​

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?