16. Two years of local phone service costs $883, including
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The area of the arrow given in the figure is 610 square cm
<h3>Area of composite figure</h3>The given figure is made up of rectangle and triangle. The area is expressed as:
Area = Area of rectangle + area of triangle
Substitute the given parameters
Area of the arrow = (15*20) + 0.5(31 * 20)
Area of the arrow = 300 + 310
Area of the arrow = 610 square cm
Hence the area of the arrow given in the figure is 610 square cm
Learn more on area of composite figures here: brainly.com/question/21135654
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Using the combination formula, it is found that there are 792 ways to pick a team of 7.
The order in which the kids are chosen is not important, hence, the combination formula is used to solve this question.
<h3>Combination formula: </h3> is the number of different combinations of x objects from a set of n elements, given by:
In this problem, 7 kids are taken from a set of 12, hence:
There are 792 ways to pick a team of 7.
To learn more about the combination formula, you can take a look at brainly.com/question/25821700