By using the 20 percent off coupon that she found in the newspaper, jill saved $4 on the extra large bag of dog food that she bought. what was the cost of the bag of dog food without the coupon?

$20

Step-by-step explanation:

So the 4 dollar is 20% of the original price of the dog food . Lets have x be the original price of the dog food

4=x*.20

So we need to get x alone so we need to divide both sides by .20

4/.20=(x*.20)/.20

The two .20s on the side with the x cancel each other out so we can remove those

4/.20=x

now just divide 4/.20

20=x

So the original price is $20

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

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! : )

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