The variable can be g for games being bowled and the expression is 25g
        
             
        
        
        
Answer:
1.  8
2.  24
Step-by-step explanation:
The number of persons that drink grape milk only :
18 - 10 = 8
The number of persons that drink coffee :
42 - 8 = 34
The number of persons that drink coffee only :
34 - 10 = 24
 
        
             
        
        
        
Answer:
The half-life of the radioactive substance is 135.9 hours.
Step-by-step explanation:
The rate of decay is proportional to the amount of the substance present at time t
This means that the amount of the substance can be modeled by the following differential equation:

Which has the following solution:

In which Q(t) is the amount after t hours, Q(0) is the initial amount and r is the decay rate.
After 6 hours the mass had decreased by 3%.
This means that  . We use this to find r.
. We use this to find r.







So

Determine the half-life of the radioactive substance.
This is t for which Q(t) = 0.5Q(0). So







The half-life of the radioactive substance is 135.9 hours.
 
        
             
        
        
        
Rows of beans = 5/8
Rows of carrots = 8/9
Total number of rows = 5/8 + 8/9
= (45 + 64)/72
= 109/72
Hope This Helps You!