Find the measure, in degrees, of each exterior angle of polygon
WXYZ.

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3x + 4y = 5 x- 3y = -7 solve by substitution

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?