Write an equation of the line perpendicular to x-2y=4 and contains the points (4,-5)

Adice is rolled 5 times. how many possible rolls are there? ( determine the number of outcomes using only the fundamental counting principal )

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

An equation where variables are used to represent known values—function notation true or false