Bethany bought two books for $15.30 each. If she received a 20% discount for the books and the sales tax rate is 6.75%, how much did she pay for both books?

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Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=