You are given the first term and the common difference for a arithmetic sequence. Write the explicit formula for each. Then write the first 3 terms in each sequence. 11) A=28 d=10

12) a= -38 d=-100

13) a=-34 d=-10

14) a=35 d=4

These are different question please answer all of them,

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