Can anyone tell me how to answer number 5
the final answer is in red color

If steel is more dense that lake water, why can a boat float

Need this now! do pilots live long

Find the equation for the plane through upper p 0 left parenthesis negative 4 comma negative 8 comma negative 5 right parenthesis perpendicular to the following line. xequalsnegative 4 minus t, yequalsnegative 8 plus 2 t, zequals3 t, minusinfinityless thantless thaninfinity