Use the information to answer questions \( \mathbf{7 - 9} \). The Ruiz family rents tables for a party for 135 guests. Each table seats 9 guests. The cost to rent eacl table is \( \$ 15 \). 7. Explain how the Ruiz family can determine the total cost, in dollars, to rent the tables.

ttions for Proportional Relationships Question 6 ( 1 pout) Read the doscription of a proportional relationship. Nellie and her friends set out to sea on their annual fishing trip. There is a proportional relationship betiveen the time (in hours) Nellie and her friends sailing, \( x \), and their distance from in shore (in miles), The equation that models this relationship is \( y=5 x \). How long does it take Nellie and her friends to sail 20 miles from shore? Enter your answer as a whole number of decimal. hours

The Math Mart is having an electronics sale. The iPod Touch was priced at \( \$ 269 \). It was reduced for \( 25 \% \) off for a 1-day sale, and then marked back up \( 25 \% \). What was the price of the iPod Touch now?

\( 2 x ^ { 2 } - 8 x + 6 = 0 \rightarrow + 10 , x _ { 2 } = 4 \)

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(2) \( \lim _{x \rightarrow 0} \frac{\operatorname{sen}^{3}(5 x)}{x^{3}} \)