17. Parent opinion, part 1 In a large city selvol system with 20 elementary schools, the school board is considering the adop- tion of a new policy that would require elementary students to pass a test in order to be promoted to the next grade. The PTA wants to find out whether parents agree with this plan. Listed below are some of the ideas proposed for gathering data For cach, indicate what kind of sampling strategy is involved and what (if any) biases might result. a) Put a big ad in the newspaper asking people to log their opinions on the PTA website. b) Randomly select one of the elementary schools and contact

b \( 7 \frac{17}{24}+3 \frac{15}{32} \)

\( \frac{x^{2}-4 y}{2} \), if \( x=4 \) and \( y=-3 \) sells 120 pieces of coconut

Вычисли градусные меры углов, если смежные углы относятся как \( 1: 29 \) \( (\angle A \) меныни \( \angle B) \)

theason, the value of \( x \) \[ 5 x+3=2 x+30 \text { opposite and } \]

1.1. What are the challenges that language teachers are faced with in the multicultural classroom, provide solutions for the challenges you have mentioned. (Provide five challenges and five solutions). 1.2. "Code mixing has been regarded as a sign bo laziness or mental sloppiness and inadequate command of language. It has been claimed to be detrimental to the health of the language. The traditional pedagogical resistance to code mixing stems from a combination of puristic attitudes and the use of a monolingual paradigm of language." (Sridhar, 1996). In your own words, discuss the advantages and disadvantages of code mixing.