Answer:
The contexts of children's development can be thought of as nested, interacting ecosystems. Each context can provide resources for positive growth or present significant challenges to health and well-being.
Explanation:
Benjamin Harrison V was the governor of virgina in 1781
Andrew Johnson (December 29, 1808 – July 31, 1875) was the 17th president of the United States, serving from 1865 to 1869
The difference for the given polynomial is 
Explanation:
The given polynomial is 
A polynomial is generally a sum or difference of terms or variables which are separated by addition and subtraction signs. There are "three types of polynomial": Monomial, binomial and trinomial.
The difference between is found as follows:
D = 
Removing the brackets, we get,
D = 
D = 
D = 
Thus, the polynomial represents Option A as the difference.
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