A 50 gallon fish tank is leaking at a constant rate. When Ben first sees the tank, it contains 42 gallons of water. 7 minutes later, the tank contains 28 gallons of water. 1. At what rate is the amount of water in the tank changing? Use signed number, & include the unit of measurement in your answer. 2. How many more minutes will it take for the tank to drain completely? Explain or show your reasoning. 3. How many minutes before Ben arrived was the water tank completely full? Explain or show your reasoning.

y - y1 = m(x- x1)

y - (-5) = 2/3(x -0)

y + 5 = 2/3x

y = 2/3x - 5

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation:

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step-by-step explanation: