Themba sells three different brands of sneakers. Suppose in a particular month he decides that \( 1 / 9 \) of the total sneakers in his stock should be of brand \( A \), then from the remainder of the stock, \( 5 / 8 \) should be brand \( B \), and the rest of the sneakers should be of brand \( C \). Assuming that there are 81 sneakers of brand \( C \), determine how many more of brand \( B \) sneakers are there than brand \( C \).

Indica con una crocet 1 L'aratura è una lavora \( \square \) prepara il letto di \( \square \) sparge i semi sul t \( \square \) interra i semi spar

Moneta misteriose Quale monsta ha il valore di \( \frac{1}{5} \) di 1 e? Quante di queste monete servono per fare 5 e?

b) What is the measure of each of the following sets? i) An open interval \( (a, b) \) ii) A closed interval \( (a, b) \) iii) A singleton set

\( x \) starts to increase at a rate of 3 units per second. This causes \( S(x) \) to increase as well. Find the rate of change of \( S(x) \) with respect to time, at the instant when \( x \) is half the perpendicular height of the pyramid. Give your answer in square units per second, in terms of \( c \) and \( h \).

1. ¿Cuál es la probabilidad de que salga un número par en el dado de 4 caras y un número impar en el dado de 8 caras? Demuestra tu resultado.