Question 1110572
Sixteen common differences d from n=7 to n=23


{{{-29-(-5)=-29+5=-24}}}


General Term, {{{A-(n-1)(24/16)}}}, because the progression decreases.
{{{A-(3/2)(n-1)}}}


{{{A[7]=-5=A[1]-(3/2)(7-1)}}}

.

{{{A[1]=4}}}


General Term more specifically is {{{highlight(4-(3/2)(n-1))}}};
Use that to find the values asked.