We have the next sequence
-17,-7,3,13
first we need to find the difference between each value
-17+d=-7
d=17-7
d=10
then we have the next formula in order to find any number in the sequence
[tex]a_n=a_1+d(n-1)[/tex]in our case
n=35
a1=-17
therefore for a35
[tex]a_{35}=-17+10(35-1)[/tex][tex]a_{35}=323[/tex]therefore the answer is 323