7 The first three terms in an arithmetic progression are 5, 7 and 9. Find the (a) common difference (b) sum of the first 12 terms

Question 21 A dealer bought some computers for \( \$ 12,000 \). The computers were sold for \( \$ 18,000 \) making \( \$ 150 \) on each computer. How many computers were involved?

Wonderlic. Question 25 A watch lost 1 minute and 20 seconds in 32 days. How many seconds did it lose per day?

What is the absolute value of \( |-1| \) ? \( \begin{array}{l}\text { a } 0 \\ \text { b } 1\end{array} \) c 2

2. Sergio purchased 4 items for \( \$ 1.50 \) each. Sales tax was \( 8.25 \% \). What (4, 11) was the total price? 3. At back-to-school night, \( \frac{1}{2} \) of the algebra students came, and \( \frac{1}{3} \) of (5) the pre-algebra students came. If there are 62 algebra students and 66 pre-algebra students, how many of the students came to back-to- school night? 4. Betsy correctly answered 19 of the 25 trivia questions. What percent of (48) the questions did she answer correctly?

The partial sum \( 1+8+15+\cdots+162 \) equals \( \square \)