Brainliesttt asap!me : )

the median weekly earnings for american workers in 1990 was $412 and in 1999 it was $549. calculate the average rate of change between 1990 and 1999.

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?

Can someone me out here and the tell me the greatest common factor

The area of a circle is equal to 1 dm². find the radius of the circle.