Well the absolute value just mean make it positive and since it's already positive, you just subtract, 7-3=4
D is greater than or equal to 4
Answer:
it should be $30 so letter a
Yes, this is a function because the mapping is one to one. The domain is the the different inputs that can be put into the function, so the domain is {1,2,3,4,5}. The range is the different outputs the function can produce. So the range would be {40,80,120,160,200}.
