Is 30/15 a whole, rational, integra or natural?

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

Find two numbers if their ratio is 4: 7 and their difference is 123.

The weight of an object on the moon is 1/ 6 of its weight on earth. a person weighing 114 pounds on earth would weigh how much on the moon?