Answer:
7. 10 8. 20 9. 100 thats all i know
Step-by-step explanation:
 
        
                    
             
        
        
        
5(a + 3b) = 5(9 + 3(2)) = 5(9 + 6) = 5(15) = 75
        
             
        
        
        
to know if a polygon will tessellate one of the interior angles should be a factor of 360.
each angle of regular polygon = d = (n-2)*180
 
        
             
        
        
        
Answer:
The weight of the block of ice after 1 day is of 4.81 pounds.
Step-by-step explanation:
Equation for exponential decay:
The equation that models an amount after t hours, subject to exponential decay, is given by:

In which A(0) is the initial amount and r is the decay rate, as a decimal.
A 10-pound block of ice melts at a rate of 3% per hour.
This means that 
So



Find the weight of the block of ice after 1 day.
One day has 24 hours, so this is A(24).

The weight of the block of ice after 1 day is of 4.81 pounds.
 
        
             
        
        
        
Answer:
40 ft/in
Step-by-step explanation:
There is 40 feet for every inch of the model