If the formula is used to find the mean of the following sample, what is the value of n? 43, 36, 93, 2, 28,
83, 10, 22, 9, 84,
41, 3, 13, 20

A.15
B.16
C.14
D.13

Use the multiplier method to incrases £258 by 43%

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

If a is a nonzero real number then the reciprocal of a is