Help me please :D Select the function that represents the simple interest formula.
A. A(n) = P+(n-1);• P, where n is a positive integer
B. A(n) = P + (n-1);• P, where n is any real number
C. A(n) = P(1 + on-1, where n is any real number
D. A(n) = P(1 + i1 - 1, where n is a positive integer

Consider the function f(x)=−2/3x+5 . what is f(1/2) ? enter your answer, as a simplified fraction, in the box. f(1/2)=

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.