Pls Someone Help me Question:make the greatest and smallest 4 digit number by using any one digit twice = 8,2,7

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

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 figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).