Book Maths Puzzle Algebra

Find each quotient: The problem below is a fraction with 3 sets of numbers on top and three on bottom.
6a^5b^7c^6/-3a^3b^9c^6

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Book Other Question

Find the measeurement of angle APC
Known
Line AP has a point B on it
Line PC has a point D on it
Lines AB and CD are the same length
Lines AB and CD are both Chords of a circle
The measurement of Arc ACD is 200 degrees
Point P is outside the circle
Is there enough information to determine the measeurement of angle APC? If 90 is increased by 130 percent, what is the resulting number?