12 A school chef has 75 kg of flour. She uses an average of 5.35 kg flour each week. There are 13 weeks in the school term. Is she likely to have enough flour for the term? show calculations to explain your answer.

2. Reference books are for use in the library. There are 16 bookshelves for the reference books. After use, they need to be returned to a special collection box for shelving. If 128 reference books are in use and 84 reference books are in the collection box. how many reference books are on the shelf?

Calculate the gross profit for an item that cost the business \( \$ 12 \) and sold for \( \$ 30 \). Gross Profit \( =\$[?] \)

Which of the following are rational numbers? Select all correct answers. Select all that apply: \( 0.7171171117 \ldots \) \( 0.0505505550 \ldots \) \( 0.6262626262 \ldots \) 4.8 \( \square \sqrt{13} \) \( \square \) \( \square \)

\begin{tabular}{l}\( 18 \times 6=6 \times 18 \) \\ \hline Select the correct answer below: \\ \hline Associative \\ \hline Commutative \\ Inverse \\ Identity \\ Distributive \\ \hline\end{tabular}

In an arithmetic sequence where the first term is \( 2 \) and the third term is \( 8 \), what is the common difference?