Answer:
xy represents the diameter
Answer:
The sum of three times a number and 4
At $7.50 per soccer ball, they earn a daily profit of $232.50.
The store needs to earn a daily profit of $400 – $232.50 = $167.50 from footballs.
Solve 167.50 = –4x2 + 80x – 150 to find the price for footballs: x = $5.46 and $14.54.
The answer is 21900
BUT if we count leap years it would be 21915 because there would be 5 leap years