Round to the nearest hundredth 0.633

Can someone me do math because i am having a breakdown rn because i don’t get it

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.

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose