Question 10 An extended family of 31 people has a beach picnic to celebrate Grandpa Bert's \( 80^{\text {th }} \) birthday. They order take-away from the local fish and chips shop. The children's meals are \( \$ 9 \) each and all the adults order seafood with salad for \( \$ 15 \) each. This costs \( \$ 351 \) altogether. a) Define two variables and write two simultaneous equations relating these variables.

Factor the polynomial: \( x^{2} - 9 \)

The coefficients in the algebraic expression: \( 3 \mathrm{~B}+5 \mathrm{~V}+2 \) are [EIMonofia-s \( \begin{array}{llll}\text { A. } 3 \text { and } 2 & \text { B. } 3 \text { and } 5 & \text { C. } 5 \text { and } 2 & \text { D. } 2 \text {, }\end{array} \)

ax \( +2 x=5 \) 4. Draw the \( x-3-2-1 \) o \( y \) 5. \( 6 ; 2 ;-2 ;-6 ; \)

Construct a polynomial function with the stated properties. Reduce all fractions to lowest terms. Third-degree, with zeros of \( -5,-3 \), and 2 , and a \( y \)-intercept of -8 . Answer

Simplify: \( a^{3} \times a^{2} c \)