11. \( \left(1+\frac{1}{2}\right) \cdot\left(1+\frac{2}{3}\right) \cdot\left(1+\frac{3}{4}\right) \) Yukarıda verilen işlemin sonucu kaçıır? \( \begin{array}{llll}\text { A) } \frac{3}{4} & \text { B) } \frac{7}{2} & \text { C) } \frac{2 k}{8} & \text { D) } \frac{35}{8}\end{array} \)

Aiden wants to buy a chocolate bar for every student in year 7 . There are 110 students in year 7 . A pack of 6 chocolate bars costs \( £ 1.20 \) Work out how much Aiden will have to pay for the chocolate bars.

Round \( 5.34 \) to the nearest tenth.

1. Quante domande! Moltiplica un numero naturale per se stesso. Come si chiama il numero che hai ottenuto?

2 calculators cost \( £ 10.40 \) 3 pens cost \( £ 3.54 \) Jude wants to buy 30 calculators and 30 pens. He only has \( £ 200 \) Does Jude have enough money to buy 30 calculators and 30 pens? You must show how you get your answer.

List all the prime factors of 30.