This doesn’t make any sense someone explain please

The product of two negative rational numbers is always zero sometimes zero never zero

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

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.