29 Calson sold 8 teddy bears and 8 toy horses for \( \$ 72 \). One teddy bear and one toy horse cost \( \$ 9 \). He made \( \$ 24 \) more from selling the teddy bears than from selling the toy horses. What is the cost of one teddy bear?

\( 1010110 _ { 2 } - 100001 _ { 2 } \)

The lengths of the rectangle have been measured to the nearest tenth of a metre. Work out the following, writing down all the figures on your calculator display: a) The upper bound for the perimeter of the rectangle. b) The lower bound for the area of the rectangle. 15.8 m

Camilo gana \( \$ 1200000 \) mensuales y Pablo gana \( \$ 250000 \) más que Camilo.

4. Resuelva las siguientes operaciones con número racionales. \( \left(-\frac{3}{5}\right)\left(\frac{4}{7}\right)\left(-\frac{1}{6}\right) \) \( \left(-\frac{11}{7}\right)\left(-\frac{5}{9}\right)\left(-\frac{15}{6}\right) \) \( \left(-\frac{2}{5}\right)\left(-\frac{45}{2}\right) \) - \( (-7)\left(-\frac{5}{8}\right)\left(-\frac{9}{7}\right) \) - \( \left(-\frac{4}{5} \div-\frac{3}{4}\right. \) \( \frac{9}{8} \div \frac{7}{5} \)

Read the last sentence of "My Name Is Casares." Every once in a while, though, I'll notice in the reply [to one of my emalls] that the person's computer isn't able to read my accent and so, Instead, converts It Into a question mark, which somehow seems about right. What message or insight does the writer most likely intend to convey in this sentence? As you choose, consider the essay as a whole. Not every question we encounter in life has a definitive or certain answer. Much of what defines a person, such thes spelling of his or her name, is insignificant. Modern technology introduces "noise" into our experience, which makes it difficult to interpret the past. People are likely to have second thoughts about a serious decision, such as the decision to change the spelling of one's name.