To find the length of the sides of the quilt multiply the length of each square by how many squares make up that side 30 cm · 5 squares = 150 cm (this is for both length and width because this quilt is a square) For a square, perimeter=4·side, or all sides added together p=4·150cm p=600cm Area of a square is length · width A=150 cm·150 cm A=22,500 cm²
15r means that she burns 15 calories per min, for as many mins as she ran. EG: if she ran for 10 min, then she burned 150 cals. The other one I'm not so sure.
