An experiment consists of randomly drawing one marble from a bag containing 7 purple, 4 blue, and 3 green marbles. what is the probability of selecting a purple marble from the bag if the answer is expressed as a fraction?

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

The total number of dental clinics total for the last 12 months was recorded

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.