Question

A salesperson is guaranteed $450 per week plus a 4% commission on all sales.

Answer 1

$p\%=\dfrac{p}{100}\\\\4\%=\dfrac{4}{100}=0.04\\\\4\%\ of\ s\ dollars\ of\ sales\to0.04s\\\\An\ equation:\\\\\boxed{P=0.04s+450}$