Abooklet is made from 6 rectangular pieces of paper. each piece measures 297mm by 420mm. the mass of paper is 80g per m^2. what is the mass of the booklet

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110