No need to answer all but I've been having trouble all day. Pls & thank you
1) What is the d value of the following sequence? 3, -6, -15, -24, -33,…
2)Find the 3rd term of an arithmetic sequence with t5 = 3 and t7 = 7.
3)Find the four arithmetic means between 12 and -13.
4) Find S12 for 1 + 6 + 11 + 16 +…

Question

No need to answer all but I've been having trouble all day. Pls & thank you 
1) What is the d value of the following sequence? 3, -6, -15, -24, -33,… 
2)Find the 3rd term of an arithmetic sequence with t5 = 3 and t7 = 7.  
3)Find the four arithmetic means between 12 and -13.
4) Find S12 for 1 + 6 + 11 + 16 +…

anonymous · Answer

its ok my girl dumped me today

anonymous · Answer

for the first one: is it supposed to be which number comes next in the pattern?

anonymous · Answer

I think so, that's how the question was asked

anonymous · Answer

either -7,-9,-3,-5 for the first one

anonymous · Answer

1) = -9
2) = 11

anonymous · Answer

the second question answers are 2,-1,-5,-3

anonymous · Answer

oh well then idk for #2