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the scatter plot shows the population of black toads in a forest reserve since their introduction. it also includes a set of functions drawn by different researchers to estimate the change in population of the toads.
the best fit for the scatter plot. based on the scatter plot, we can predict that in the ninth year the population of black toads in the forest will

Select the correct answer. lisa and daisy work at a hair salon. the salon charges $18 for a hair styling session with lisa and $12 for a session with daisy. the income on a certain day is projected to be $216. this situation can be represented by the equation 18x + 12y = 216, where x is the number of lisa's customers and y is the number of daisy's customers. how many customers would lisa need to serve to attain the projected income if daisy calls in sick that day? (note: x ? 0, y ? 0, and x and y take only integer values.)