8. Mariana foi almoçar com amigos e a conta total, incluindo \( 15 \% \) de taxa de serviço, foi de R\$ 240,00 . Qual seria o valor da conta sem a taxa de serviço? 9. Carlos e sua família foram a uma pizzaria. A conta total. incluindo \( 12 \% \) de taxa

When is an observed effect statistically significant? when it is "loo large" to be due to chance when it is "loo small" to be due to chance when it is "about what we expect" due to chance

2. Escribe cada una de las siguientes fracciones como numero mixto \( \begin{array}{ll}\text { a. } \frac{9}{2} & \text { c. } \frac{17}{4} \\ \text { b. } \frac{16}{3} & \text { d. } \frac{41}{2}\end{array} \)

Which of the following is an example of post-mating reproductive isolation? Females don't recognize male mating calls. Mating season occurs in different months. Mating occurs in different locations. Sperm unable to fertilize egg

5. a) \( -2-3+4+2-6 \)

1. \( f(x)=\left(\frac{4}{10} x^{5}-2 \operatorname{sen} x+1\right)^{-5} \)