It's a linear function with y-intercept = 12.
The slope-intercept form:

Let's read the coordinates of two points on the graph:
(2, 15) and (4, 18)
Substitute to the formula of a slope:

We have the equation of a line:

We need calculate the value of function for x = 1 and x = 20.
Substitute:


$12 is the "Fixed Fee", therefore the discounted entrance fee to the art museum is

The total cost is $42.00 after 20 visits.
<h3>Answer D.</h3>
The answer is C, 150 degrees.
Answer:
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Step-by-step explanation:
The <span>⇒</span><span> sign means that if the function on the left hand side of the notation is true, then so is the function on the right hand side of the notation.</span>
The unit measurement of the a volume in mm is mm³(millimetres cube.)
<h3>How to find volume ?</h3>
Volume is is defined as the space occupied within the boundaries. The objects are usually solid objects.
The volume of a 3 dimensional figure is the product of the base area and the height.
Therefore, the units of volume is measured in cubic units.
The volume of a prism with side lengths measured in millimetres is 20.
Therefore, the measurement can be represented as follows:
20 mm³
learn more on volume here: brainly.com/question/16310824
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