To calculate the amount Yolanda should tip her hair stylist, you can use the formula:
\[ \text{Tip} = \text{Cost of services} \times \text{Tip percentage} \]
In this case, the cost of services is $150 and the tip percentage is 22% (or 0.22 in decimal form).
Now, plug in the numbers:
\[ \text{Tip} = 150 \times 0.22 = 33 \]
So, Yolanda should tip her hair stylist $33.