Question 607048
The letter r is commonly used for the common ratio in a geometric sequence.
 
In arithmetic sequences, each term is equal to the previous one plus a common difference, that is often called "d". So if you really meant an arithmetic sequence starting at -22, with a common difference of 5, then the second term would be
{{{a[2]=-22+5=-17}}} ,
the third term would be {{{a[3]=-17+5=-12}}} and the fourth term would be
{{{a[4]=-12+5=-7}}}. So along with {{{a[1]=-22}}}, we know the first four terms to be
-22, -17, -12, -7.
 
If it was a geometric sequence with common ratio {{{r=5}}}, the terms would be
{{{a[2]=-22*5=-110}}} , {{{a[3]=-110*5=-550}}} , and {{{a[4]=-550*5=-2750}}} .