Carla runs ever 3 days. She swims every Thursday. On Thursday 9 November, Carla both runs and swims. What will be the next date on which she both runs and swims?

Calcula de forma ágil los siguientes porcentajes. \( \begin{array}{ll}\text { a. El } 30 \% \text { de } 500 . & \text { b. El } 20 \% \text { de } 800 . \\ \text { c. El } 45 \% \text { de } 1000 . & \text { d. El } 50 \% \text { de } 720 . \\ \text { e. El } 15 \% \text { de } 100 . & \text { f. El } 25 \% \text { de } 500 .\end{array} \)

Using rational approximations, what is an inequality statement comparing \( \sqrt{91} \) and \( \sqrt{98} \) ? Enter \( <,> \), or \( = \) (1 point) The inequality is : \( \sqrt{91} \square \sqrt{98} \)

Let \( A \) and \( B \) be two events, such that \( P(A)=0.6373, P(B)=0.2759 \), and \( P(A \) and \( B)=0.1323 \) Find the following probability: \[ \mathrm{P}(\mathrm{A} \text { or } \mathrm{B})=\square \text { (Round the answer to } 2 \text { decimals) } \]

\( I=\frac{n E}{n r+R} \), for \( n \) a. \( n=I R(I r-E) \) b. \( n=\frac{I R}{I r+E} \) c. \( n=\frac{R}{I r-E} \) - d. \( n=\frac{I R}{I r-E} \)

1. (2p) Töestada, et arv \( \sqrt{14} \) ei ole ratsionaalarv.