Three million, eight hundred thousand one, four houndred fourty four
Terri walked in her own 93rd percentile, while April swam in her own 99th percentile. April is off to a slightly better start.
(x,y) = (r,16)
With this knowledge, plug in r for x, and 16 for y
16 = 2(r) - 4
Isolate the r, add 4 to both sides
16 (+4) = 2r - 4 (+4)
20 = 2r
Divide 2 from both sides
20/2 = 2r/2
r = 20/2
r = 10
hope this helps
Depends on where you are in the math book but this would be the most simple way.
n= number
sqar(-1) = i