Town planners are planning a 500 foot by 700 foot parking lot by making a scale drawing that is 90 in by 126 in. what is the scale of inches in the drawing to inches in the actual object?
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What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?