O negativo da idade de Arnaldo é menor que o negativo da idade de José. O negativo da idade de José é menor que a idade de Francisco. Pode-se afirmar, seguramente, que:

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.