1)) Find the value of the expression \( \begin{array}{l}9 \cdot u \\ \text { for } u=2 \text {. }\end{array} \) Submit

To find the value of the expression \( 9 \cdot u \) for \( u = 2 \), simply substitute \( u \) in the expression: \( 9 \cdot u = 9 \cdot 2 = 18 \). So the value of the expression is \( 18 \). Math is like cooking; the right ingredients (or values) yield a satisfying result! And let’s not forget - a little practice goes a long way, so keep those calculations coming!