Each of the 25 students in Mr. McDonald's class sold 16 raffle tickets. If each ticket costs \$15, how much money did Mr. McDonald's students raise?

Dave only plays hockey on Tuesday and Wednesday. Ann only plays hockey on Thursday and Sunday. How many days each week does at least one of them play hockey Ex 8

Ron, Sue and Bob play on the same soccer team. Ron has played 19 minutes in total. Sue has played 15 minutes in total. Bob has played 20 minutes in total. Each pair has played 5 minutes together. All three of them have played at the same time for 3 minutes. How many minutes in total did the team have at least one of them playing.

a. Ana compró un pote de helado de \( \frac{1}{2} \mathrm{~kg} \) y otro de \( \frac{1}{4} \mathrm{~kg} \) ¿Cuánto helado compró en total?

\( \begin{array}{lll}\text { Вы } 3 \frac{3}{4} \cdot 1 \frac{3}{5} ; & \text { в) } 1 \frac{15}{29} \cdot 1 \frac{9}{20} ; & \text { д) } 2 \frac{1}{3} \cdot 1 \frac{4}{5} \cdot 1 \frac{4}{7} ; \\ \text { б) } 1 \frac{7}{23} \cdot 3 \frac{5}{6} ; & \text { г) } 8 \frac{23}{34} \cdot \frac{17}{59} ; & \text { е) } 1 \frac{4}{9} \cdot 3 \frac{6}{7} \cdot 3 \frac{6}{13}\end{array} \)

El mes pasado, trabajé en una empresa durante 5 dias, cobrando 160 euros. Este mes quiero comprarme un móvil que cueșta 350 euros, pero no tengo dinero. ¿Cuál es el mínimo número de dias que tendría que trabajar en la empresa para poder comprarlo?