If the tiles are 3/4 inch by 9/16 inch, how many would Noah need to cover the tray completely, without gaps or overlaps? Explain or show your reasoning. Please Help!

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5