Landon and his children went into a bakery and will buy donuts and
brownies. Each donut costs $1 and each brownie costs $3. Landon has
a total of $15 to spend on donuts and brownies. Write an inequality
that would represent the possible values for the number of doiluts
purchased, d, and the number of brownies purchased, b.

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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