RK 2. y varies inversely as x. y = 18 when x= 7. Find y when x= 3.
y=
(Simplify your answer.)
RK 2.
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Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two