9 (a) A bag contains red counters and blue counters only. number of red counters: number of blue counters = 3:4
Write down the fraction of the counters that are red.

The Answer Is: 3/7

Step-by-step explanation:

Total counters in a bag are= 3 +4 = 7

The fraction of the counters which are red are = Number of red counters

Total counters in bag = 3

what is all that apply?

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