<h3>0.5 inches of hair is grown each month</h3>
<em><u>Solution:</u></em>
Given that,
Bethany cut off 18 inches of her hair
It took her 3 years to grow it back
<em><u>How much did her hair grow each month?</u></em>
From given,
length of hair = 18 inches
Number of years = 3 years
<em><u>Convert to months</u></em>
1 years = 12 months
3 years = 3 x 12 = 36 months
<em><u>Thus, length of hair grown in 1 month is given as:</u></em>
Thus, 0.5 inches of hair is grown each month