7. Lori's Gift Shop sold 4 watches last week for \( \$ 9 \) each and 3 more watches this week for \( \$ 9 \) each. Show two ways to determine how much money the gift shop received from selling all of the watches.

= Integer addition: Problem type 2 Add. \( \left.\begin{array}{r}-26+(-31)=\square \\ 57+(-35)=\square\end{array}\right) \)

Find the \( 15^{\text {th }} \) term of the arithmetic sequence whose common difference is \( d=8 \) and whose first term is \( a_{1}=-20 \).

Find the \( 74^{\text {th }} \) term of the following arithmetic sequence. \[ 13,18,23,28, \ldots \] ПII

Work out \( \frac{6}{12}-30\left(66+\frac{1}{17}\right) \) Give your answer

Round \( 3.76 \) to the nearest tenth.