Answer:
completing the square
Step-by-step explanation:
Answer:
20% tip is $3.97, add that to 18.97 and you get $22.76, then add 8.25 and you get $31.01
Answer:
392
Step-by-step explanation:
If Dave has 15 dollars and must spend 8 dollars of it on a book, then he will have 7 dollars left. If he then buys two of the same cards for his friends, the most he will be able to spend is half of 7 dollars for each of them, which will be 3 dollars and 50 cents.
The equation to solve for p....[12p = 420]
Then divide both sides by 12.
And your answer....[p = 35]
