Problem 8 (Second Session 2001)
To buy two copybooks and three pens, we must pay 9000 LL.
To buy four copybooks and two pens, we must pay 8000 LL.
The preceding givens are translated by the following system:
2x + 3y = 9000
4x + 2y = 8000
1. What do x and y represent in this system?
2. What is the information translated by the equation 2x + 3y = 9000?
3. Calculate the price of a copybook and the price of a pen.

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

Every night nathan has to read for at least 25 minutes write and inequality that shows how long nathan can read each night

Which of the following statements is true? a. sin 18° = cos 72° b. sin 55° = cos 55° с. sin 72° = cos 18° d. bоth a and c.