Respuesta :

1 : Go .....

[tex]A= bh \: [/tex]

Divided sides by b

[tex] \frac{A}{b} = h \times \frac{b}{b} \\ [/tex]

thus ;

[tex]h = \frac{A}{b} \\ [/tex]

_________________________________

2 : Go .....

[tex]area = height \times length(base) \\ [/tex]

[tex]45 = h \times 9[/tex]

Divided sides by 9

[tex] \frac{45}{9} = h \times \frac{9}{9} \\ [/tex]

[tex]h = 5 \: ft[/tex]

And we're done...

♥️♥️♥️♥️♥️