A = amount of sales
so hmmm The Furniture Barn gives only 5% of "A" then, that means
![\begin{array}ll \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{5\% of A}}{\left( \cfrac{5}{100} \right)A}\implies 0.05A](https://img.qammunity.org/2023/formulas/mathematics/college/3tl7hjr0rat2f33k50ap8aosybl10x0aok.png)
whilst The Furniture Warehouse gives you 350 bucks per week and only 1% of "A", well, that means you gross pay there will 350 + 0.01A.
hmmm how much will "A" be for both offers to pay the same amount?
![\stackrel{Furniture~Barn}{0.05A}~~ = ~~\stackrel{Furniture~Warehouse}{350 + 0.01A} \\\\\\ 0.04A=350\implies A=\cfrac{350}{0.04}\implies \boxed{A=8750}](https://img.qammunity.org/2023/formulas/mathematics/college/aoz7tiw534n6098mygsqu6mgk98rrglwjo.png)