exam Maths Puzzle Numerical Ability

Write the standard from of the equation and the general form of the equation of each circle of radius r and center (h,k);graph each circle.


The problem says: r=4; (h,k)=(2,-3)

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exam Other Question
The sum of the squares of two consecutive positive integers is 85. Find both integers. Im not how 2 set up the problem If 1/2 of 16 were 13, what would 1/3 of 32 be?