Question

5) If xf =20, fx;=140+5k and X = 9 find K​

Answer 1

Answer:

$\pink{5) If \: xf \: = \: 20, \: fx;= \: 140 \: + \: 5k \: and \: X = 9 \: find \: K}$

Answer 2

Answer:

K$\huge\bold \purple{K =21 }$