Approximately how many cups of aquarium salt mix should julian use for 30 gallons of purified water? round your answer to the nearest cup. 17 cups 16 cups 17 cups 16 cups

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

What is the value of x in the diagram below?

How do you solving the solution of each system using elimination?