2. Look at the calendar for January of a certain year. Answer the questions that follow. a) How many weeks are there in January? b) On what day of the week does 12 January fall? c) Luke has a birthday on 25 January. On which day does it fall?

\( \left. \begin{array} { r } { 19 \rightarrow \ldots + + } \\ { + 32 \rightarrow + { } ^ { + } = } \end{array} \right. \)

(A) \( \frac{250}{50} \)

1. Démonstration : Montrer que \( \sqrt{x+4}-\sqrt{x} \geq 2 \) pour \( x \geq 0 \)

TRADUCI DAI SIMBOLI AL DIAGRAMMA Considera gli insiemi \( A \) e \( B \) e i loro complementari rispetto a un insieme \( U \) di cui sono sottoinsiemi propri. Rappresenta con un diagramma di Venn ognuna delle seguen- ti situazioni. \( \begin{array}{lll}\text { a. } B \subset A ; & \text { b. } \bar{B} \subset A ; & \text { c. } \overline{A \cup B}=\varnothing\end{array} \)

Find the simple interest rate for a loan where Birr 6000 is borrowed and the amount owned after 5 months is Birr 7500 .