## College Algebra 7th Edition

common difference; $2$; $5$
RECALL: The $n^{th}$ term $a_n$ of an arithmetic sequence can be found using the formula: $a_n = a + (n-1)d$ where $a$ = first term $d$ = common difference $n$ = term number Thus, the missing expressions in the given statements are (in order): common difference; $2$; $5$