Answer:
21
Step-by-step explanation:
1/3= 0.33
7/0.33
Answer: 312.3 square feet
Step-by-step explanation:
No solution exists for -3x+y=-18 and -3x+y=-6
If that was the end and the question was "How many boxes did she sell?" then the answer is 6 boxes.
The domain is the set of allowed inputs, in this case t values. The smallest t value allowed is t = 0. The largest is t = 165. So that's why the domain is

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The range is

since H = 0 is the smallest output of the function and H = 40,000 is the largest output. Like the domain, the range is the set of possible outputs of a function.