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
=> 
=>
Answer:
Square
Explanation:
A square is the only other shape with 4 right angles
Answer:
A. Adjacent
Step-by-step explanation:
Answer: D, 6km/hr.
Step-by-step explanation:
Heather can finish a 12-kilometer race in 2 hours, and now we have to find how many kilometers she can ride/run at in 1 hour.
How many hours can Heather run in 1 hour? To solve that, we can use the equation 12 ÷ 2.
12 ÷ 2 = 6.
Therefore, if Heather keeps her pace constant, then her rate will be 6km/hr, or D.
4- distributive property
Reason
X(y+u)= xy+xu
Expansion is distributive property
Hope it helps
