The cost of apples at a grocery store is directly proportional to the number of apples purchased. Ann paid $4.72 for 8 apples. If c represents the cost, in dollars, and n represents the number of apples purchased, which equation best represents this relationship?

Given abcd ac=38 and ae=3x+4 find the value of x

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

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