Someone please help me I really need help me need step by step and answer

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Is this a polynomial function? i need to know asap

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