Which piece of wood would be the shortest 1/3 1/4 2/5 or3/10

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

What is the value of y? round to the nearest tenth

Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?