Plz help 3 question with explanation

Mathematics

1 answer:

Westkost [7]3 years ago

7 0

Answer:

1. $79.38

2. It's correct.

Step-by-step explanation:

price: $105

discount: 30%

tax: 8%

Calculate 30% of 105 and subtract it from 105

To convert 30% to decimals, divide by 100.

$\frac{30}{100}=0.30$

105-0.30(105)

105-31.50

$73.50

Now calculate 8% of it and add it.

73.50+0.08(73.50)

73.50+5.88

$79.38

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Write in vertex form (by completing the square)y=4x2+40x+96

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Answer:

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Step-by-step explanation:

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4 years ago