#### James Smithson

##### New member

- Joined
- Nov 6, 2020

- Messages
- 27

v=0.27x(126)^t (v is vocab and t is age in months)

my 3 questions are

1. calculate the size of vocab for a child age 18 months and a child aged 30 months . 18 months v = 17.299501 30 months v = 2.77000222

(so i think i got this right)

2. wright down the scale factor and use it to find the percentage increase in vocab each month. (i have no idea how to attempot this the only scale factoring i have done is in shapes )

3 find the age of a child when they know 500 words. (i got the answer t=32.55543)

please could you guys tell me if i got the ones i answerd correct and advice me how i can answer q2

thanks