Math
posted by Hope .
A square flower garden and a sidewalk around the garden have an area of 400 ft2. The sidewalk has a width of 3 ft. What is the length of one side of the flower garden?

the total width is 20ft (400 = 20x20)
6ft of that is sidewalk (on both ends)
the garden is 14x14 
is it square?
If so, then s^2 + (s+6)*3*2+2*3*s=400
figure out what s is ... and figure out how I got that equation... 
A cactus casts a shadow that is 14 ft 7 inlong a gate nearby casts a shawdow that is 5 ft longestimate the height of the cactus?
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