The seating in a stadium is arranged so that the first row has 16 seats, the second row has 25 seats, the third row has 34 seats and so on. Calculate how many seats are in the ninth row. \( T_{9}=\square \) Check answer

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 : \( S=U_{0}+U_{1}+U_{2}+\ldots+U_{8} \)

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

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

The capacity of three containers is 30 liters, 45 ers and 60 liters. Determine the capacity of the eatest container which can be used to fill each the container in exact number of times?

If the sum is 18 and you turned over a 7 , how would you find the new sum? Share your strategy.