Help please Circle theorems. Please help me solve for x.

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Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?