Determine the circumference of a circle with a radius of 4 units.
16 7 units
87 units
327 units
47 units
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Avegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide. find the total area of the vegetable garden and path

X+ y = 5 ; x - y =3 solve using linear combination

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?