Question

How do i slove
i dont understand

Answer 1

Cecilia rules, so she gets a 15% discount on the game for $51.40, so that means she's not paying 100% of the price, she's only paying 100% - 15% = 85%, how much is that anyway?

`\begin{array}c \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{85\% of 51.40}}{\left( \cfrac{85}{100} \right)51.40}\implies 43.69`

now, if she uses her $45 gift card to pay for that, what's leftover in the card is just 45 - 43.69 = 1.31.