A particular store sells items for only $1, $3 and $5 and charges no sales tax. If Georgia buys nine SI items, seven $3 items and three $5 items
from this store, what is the total amount she will be charged?
SI $3 $5

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

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.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12