Hello, may someone please help me on this Arithmetic and Geometric Progressions question? I'm absolutely struggling with this. I appreciate you, thank you!!Determine whether the following are arithmetic or geometric progressions (or neither/both), then find the formula for an, and finally find the sum of the first 10 terms:a) - 7/4, -1, -1/4, 1/2,...b? 1?-2/3, 4/9, -8/27,...c) 16, 1.6, 0.16, 0.016,...d) 9, 3, -3, -9,...

Problem 9. Arithmetic and Geometric Progressions. 20 points.moldon Determine whether the following are arithmetic or geometric progressions (or neither / both), then find the formula for an, and finally find the sum of the first 10 terms: a) -7, -1, -1, 4. ... Arithmetic: Geometric; an = at (n- 1) . dodd ( an = axr n- b ) 1, - 3, 9, - 27:.. c) 16, 1.6, 0.16, 0.016, ... Sn: 2 [za + (n-1)d] Sn=? if =r#1 1-r if =1 = 1 d) 9, 3, -3, -9,. .. na