we have given that body weight is 144 pounds and 16.4% is made up of fat.
amount of fat [tex] =\frac{16.4}{100} *144=23.62, pounds [/tex] is made up of fat.
if we round 23.62 to nearest ten will get 23.60 pounds .so her body is made up of 23.60 pounds of fat out of 144 pounds body weight.
