.

A. 36

B. 72

C. –36

D. –72

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?

Need showing work for this problem 56.25 ×25.80

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122