Correct Answer: Option A

Explanation

d = -3 - (-7) = 4

S\(_{20}\) = \(\frac{20}{2}\){2(-7) + (20 - 1) 4}

= 10(- 14 + 76)

= 620

• an argumentative essay to support the motion that says technical and vocational education should be mandatory in secondary school in... Answer this

  2 Answers   ·   English Language   ·   3 days ago
• who is the was the first nursing mother of the prophet(s.a.w)? Answer this

  1 Answers   ·   CRK/CRS   ·   1 day ago
• Please answer this. For those that there jamb result is still showing "under investigation" is there any news about or... Answer this

  1 Answers   ·   1 day ago