0.3 х = 0.12

what’s the blank ?

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)

Yvaries inversely as x. y =12 when x=5. find y when x=4

Is (0,0) a to ? ys x2 - 4 y> 2x-1