Write a recursive formula for the arithmetic sequence:

7,4,1,-2

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Which graph of a hyperbola represents the equation 16x^2-y^2=16

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?