Dan had 78 dollars to spend on 7 books. After buying them he had 15 dollars. How much did each book cost?

What is the value of f (2/3) for the function f (x) = 2x-5/3?

The perimeter of square A is 28 feet less than the perimeter of square B. The area of square A is 161 square feet less than the area of square B. If x and y are the side lengths of square A and square B, respectively, what is the value of x + y?

Nick surveyed a random sample of the freshman class of his high school to determine whether the Fall Festival should be held in October or November. Of the 85 students surveyed, 33.2% preferred October.

32x + 23 - 42 = 365 What does x equal?

Rachel and Sarah belong to different gyms. Rachel's gym charges a one-time registration fee of $15 and then charges $35 per month. Whereas Sarah only pays $25 per month but had to pay a $75 registration fee.

Need to know how to multiply negative decimal numbers and how to divide negative decimal numbers

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9. Write an equation of a circle with the given center and radius. center (-7,-6) and radius 2 0 (x-7) 2 + 0 - 6 - = (x - 7) 2-6-6) 2 = - 7) - - * fax - 7) - - is

What is 200 divided by 10, multiplied by 3 and subtracted by 59?

Elevator starts with 104 are they building at tuildingl elevator starts with 100th floor of a building. It decacends 4 floor every 10 seconds. At what floor will the elevator be in 60 Secounds after it stats