Question

(56 pts.)

Answer 1

Answer:

5.5 inches

Step-by-step explanation:

the length of the baby's head =

1/(1+3) × 22 = ¼×22 = 5.5 inches

Answer 2

Let head be x

$\\ \sf\longmapsto x+3x=22$

$\\ \sf\longmapsto 4x=22$

$\\ \sf\longmapsto x=\dfrac{22}{4}$

$\\ \sf\longmapsto x=5.5in$