Question

Please hurry and show steps :0

Answer 1

1. nth term=3n-1

  20th term=3(20)-1=60-1=59

2. nth term=-2n-4

   20th term=-2(20)-4=-40-4=-44

3. nth term=$\frac{2}{3}$n-$\frac{2}{3}$

   20th term=$\frac{2}{3}$(20)-$\frac{2}{3}$=$\frac{40}{3}$-$\frac{2}{3}$=$\frac{38}{3}$

4. nth term=-$\frac{1}{3}$n+$\frac{11}{15}$

   20th term=-$\frac{1}{3}$(20)+$\frac{11}{15}$=-$\frac{20}{3}$+$\frac{11}{15}$=-$\frac{89}{15}$