Answer:
The value is 
Step-by-step explanation:
Generally the productivity rate is mathematically represented as

Here K is the ha the farmer could harvest in an hour and Z is a typical yield of corn in kg/ha
Now considering 1970
The productivity rate is

=>
Now considering 1940
The productivity rate is given as
Generally the productivity ratio is mathematically ration is mathematically represented as

=> 
=> 
28/8 or 7/2 is the answer to that
The answer is C. D = {0,1,2}; D = {x | x is a whole number, x < 3}
Answer:19
Step-by-step explanation:
again add den mutiply subtaract
Answer:
The slope in the equation is -1/2