Cómo se expresa en notación científica 1254​

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet