Answer:
“Principal” is a term that has several financial meanings. The most commonly used refers to the original sum of money borrowed in a loan or put into an investment.
Domain is the values of x. x is from -5 to 7, it includes -5 ([ ] is the include symbol, but doesn't include 7, so C is the answer
Answer:
Step-by-step explanation:

A monomial has one term, binomial has two terms, trinomial has three terms, and a polynomial has four or more terms.
Therefore, in the first question, c2-16 is the binomial while -8c is the monomial in the second question.
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Answer:
C.1/2
Step-by-step explanation:
1/3 have siblings and 1/2 of those are girls
1/2 of the siblings are girls