Find Nth Term and Sum of Arithmetic Sequence

Find the next three terms in the arithmetic sequence: -3, -8, -13, -18, ...

• -20, -24, -28

• -21, -25, -29

• -23, -28, -33

• -24, -29, -32

Find 26th term in the arithmetic sequence: -15, -35, -55, -75, ...

• -515

• -490

• -535

• 460

Find the 26th term in the arithmetic sequence: 20, 26, 32, 38, ...

• 182

• 176

• 170

• -118

Find the 20th term in the arithmetic sequence: 5, 12, 19, 26...

• 145

• 144

• 142

• 138

a₁=5, a₂=11, a₁₅=?

• 95

• 89

• 81

• 159

Find the 25th term of the sequence if a₁ = 5 and d = 0.5

• 18

• 17

• 15

• 14

Find the 22nd term of the following sequence:
5, 8, 11, ...

• 14

• 68

• 63

• 71

Determine the sum of the series written in Sigma Notation. 

• 3174

• 1590

• 3180

• 6356

Determine the sum of the series written in Sigma Notation. 

• 5400

• 2692

• 2700

• 2704