0. On a winter day, the temperature of Namche Bazar in the morning was \( -5^{\circ} \mathrm{C} \). It is increased by \( 10^{\circ} \mathrm{C} \) in the day time and again decreased by \( 6^{\circ} \mathrm{C} \) in the evening. a) Show this information in a number line. b) Write a mathematical expression to show the given information. c) Calculate the temperature of Namche Bazar in the evening.

Example 3 If a student saves Ghe 1 on the first day, Ghe 2 on the second day, Ghe 3 on the thit day and so on. What will be his total saving in 365 days?

Suites arithmétiques Les questions sont indépendantes. 1. On définit pour tout \( n \) la suite \( \left(U_{n}\right) \) par : \[ U_{n}=3 n-2 \] Montrer que \( \left(U_{n}\right) \) est une suite arithmétique. 2. Soit \( \left(U_{n}\right) \) une suite arithmétique de premier terme \( U_{0}=5 \) et de raison \( \frac{1}{3} \). Calculer le \( 9^{\text {ieme terme, puis calculer la }} \) somme : \( S=U_{0}+U_{1}+U_{2}+\ldots+U_{8} \)

If the sum was 24 and you turned over an 8 , how would you find the difference? share your strategy.

With your teacher: The first term of a arithmetic sequence is 14 . The \( 7^{\text {th }} \) term is 50 . Find: (a) The common difference ' \( d \) '. (b) The rule for the sequence. The \( 6^{\text {th }} \) term of an arithmetic sequence is 123 . The \( 11^{\text {th }} \) term is 98 . Find; (a) The common difference ' \( d \) ' and first term ' \( a \) '. The rule for the sequence. (b) (c) \( 16^{\text {th }} \) term.

a. Find \( 80,6 \% \) of 110.