8:59 PM Thu Feb 20 Emilio Mejia Felici... R. 5 Evaluate multi-variable expressions Video 03:56 v Evaluate the expression for \( w=9 \) and \( x=4 \). \[ w x+w= \] \( \square \) Submit Not ready yet?

To evaluate the expression \( wx + w \) for \( w = 9 \) and \( x = 4 \), first substitute the values into the expression. This gives you \( 9 \cdot 4 + 9 \). Then, calculate \( 9 \cdot 4\) which equals 36, and finally add 9 to that result. So, \( 36 + 9 = 45\). In multi-variable expressions, remember the order of operations (PEMDAS/BODMAS). Multiply first, then add. It's a common mistake to add before multiplying. Always double-check your calculations to avoid simple errors, especially under time pressure!