Al iniciar la semana, el precio del barril de petróleo es de 42.3 dólares. En el transcurso de la semana presentó las siguientes variaciones: subió ¢70, bajó ¢102, subió ¢82, subió ¢10, subió ¢5, bajó ¢75 y finalmente subió ¢17. Considerando el precio inicial, ¿cuál es la variación final que tuvo el precio del barril de petróleo?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

Pls the last one and it has to be like number 6