Which is the equation of a circle that passes through (2,2) and is centered at (5,6)?

Which of these tools or constructions is used to inscribe a hexagon inside a circle?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

Here is another math questions. i will keep asking different questions. 4^2x=6