Answer:
Part A: $60
Part B: $54
Step-by-step explanation:
It depends if the negative number is bigger than the positive number your answer will be a negative number/answer for example -9 - 4 your answer would be -5 since the negative number is bigger it will be the other way around for a positive number if the positive number is bigger than the negative number your answer will be positive for example 5 - -2 = 3 or positive 3.
3.70+1.25+1.48= 6.43.
20-6.43=13.57
You would get $13.57
Using it's concept, it is found that the domain of the graphed function is given as follows:
D. 
<h3>What is the domain of a function?</h3>
It is the set that contains all possible input values for the function. In a graph, it is given by the values of x.
In this graph, x assumes values between -4 and 2, inclusive due to the closed circle, hence the domain is given by:
D. 
More can be learned about the domain of a function at brainly.com/question/10891721
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