Respuesta :
Answer:
[tex]h=\left(\dfrac{p}{0.7}-b\right)\div r[/tex]
Step-by-step explanation:
Solving for h, you find ...
[tex]p=0.7(rh+b)\\\\\dfrac{p}{0.7}=rh+b\qquad\text{divide by 0.7}\\\\\dfrac{p}{0.7}-b=rh\qquad\text{subtract $b$}\\\\\boxed{h=\left(\dfrac{p}{0.7}-b\right)\div r}\qquad\text{divide by $r$}[/tex]
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We suppose your first answer choice may be the correct one. It appears to have the necessary parentheses. (Actually, all of the choices shown here are nonsense.)