Answer:
see explanation
Step-by-step explanation:
(1)
Given
A = bh ( isolate h by dividing both sides by b )
[tex]\frac{A}{b}[/tex] = h
(2)
Using the result from (1)
h = [tex]\frac{A}{b}[/tex] = [tex]\frac{45}{9}[/tex] = 5 ft
