How do i do this, i can't seem to get the answer

Determine the relationship of ab and cd given the following points

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.

Which shows a reasonable estimation for 124% of 42 using the distributive property?