All you need is in the photo

Step-by-step explanation:

given

green = 28

red = 35

yellow = y

prediction of yellow = 16 of 100

require

determine y

first ,we need to calculate the probability of yellow.

probability of yellow =

probability  = yellow\total

where

total = yellow + red + green

total = y+ 35 + 28

total= y+ 63

so,

probability  =y/( + 63)

also the prediction of yellow is 16 out of 100 .

represent this as probability  

probability = 16/100

equate both expression to solve for y

y/(y+ 63)=16/100

y/(y + 63)= 0.16

multiply both sides by (y + 63)

y= 0.16(y + 63)

y= 0.16 y + 10.08

collect like terms

y- 0.16=10.08

0.84y =10.08

solve for y

y=10.08 /0.84

y=12

1.30

step-by-step explanation: