The center of a circle is located at (5, −5) . the radius of the circle is 3. what is the equation of the circle in general form? x2+y2−10x+10y+41=0 x2+y2+10x−10y+47=0 x2+y2+10x−10y+41=0 x2+y2−10x+10y+47=0

Explain how you can use the associative property to evaluate (7x50)x4.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?