In the equation y= -2x what are the possible values of y?

Abus ride for a senior citizen cost $1.25. a monthly pass costs $35. write and inequality that represents the number of times a senior citizen must ride the bus for the monthly pass to be a better deal.

What number must you add to complete the square x^2+12x=16

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)