Three boxes are stacked one on top of other. one box is 5 feet 10 inches tall and one is 6 feet 9 inches tall how high is the stack

What is the slope of the line shown below?

Can someone answer this question for me

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.