What is the constant of proportionality in the table below?

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)