Twelve synchronized swimmers are forming a circle. the location of those swimmers are (13,-2) (-1,-2) and (6,-9). a 4th swimmer will appear in the center of the circle. where would the center swimmers need to be located?

Anyone know? will mark brainliest if correct!

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !