Chapter 2, Problem 19CP

How would you write the following arithmetic expression in C++'?

$\begin{array}{l}\text{a}\text{.}\frac{4}{3\left(r+34\right)}-9\left(a+bc\right)+\frac{3+d\left(2+a\right)}{a+bd}\\ \text{b}\text{.}\text{5}\text{.5}\times {\left(r+2.5\right)}^{2.5+t}\end{array}$