Respuesta :

well if the wall dimensions are 13 by 10ft

that is 130 area ft^2

and one can can fill up 25ft^2

how many cans does she need?

130  = 25 *x to see how many cans she needs

x= 5.2 cans

hope that helps and if right? 

McChuck
The dimension of the wall is 130ft. Since one can of paint covers 25 square feet, you must divide 130 by 25.
The answer is 5.2 cans of blackboard paint.