) A jewelry store purchases necklaces for n dollars each. The necklaces are then marked up by 20%, and customers are charged 5% sales tax on the selling price. The expression n +(20%times n) represents the selling price. Write and simplify an expression to represent the price a customer pays after sales tax is collected. Show your work. Explain the meaning of the expression

1.14n

Step-by-step explanation:

if n+(0.20n) represents the selling price, and we are charged with a 5% sales tax then we just need to multiply the selling price by 0.05 and subtract the result from the selling price(sales tax means the selling cost decreases, which is why we subtract)

so

n+0.20n-(0.05(n+0.20n))

2)distribute

n+0.20n-0.05n+0.01n

3) combine like terms

1.20n-0.06n=1.14n

1.14n is the price after salestax is collected

Hope this helps!

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)