A builder of tract homes reduced the price of a model by 12%. If the new price is $ 128,000 , what was its original[..]

A soft-drink vendor analyzes his sales records, and finds that if he sells x cans of soda pop in one day, his profit[..]

If a ball is thrown directly upward with a velocity of 40 m/s,its height (in meters) after t seconds is given by[..]

Boyle's Law, applied to the amount of gas used in a given experiment at a constant temperature, states that pV = 240[..]

the number of international vistors to the United States each year (in millions) can be estimated and projected by[..]

find the equation of the tangent line to the curve y=x^3 - 3x + 4 that is perpendicular to the line 3x-y =4

If the sides of a square are lengthened by 6cm, the area becomes 196cm^2. Find the length of a side of the original[..]

The perimeter of a square is 32 feet. What is the area of the square?

For a holiday party, Kathleen is making a six-layer torte, which consists of six 6-inch diameter cake layers with a[..]

A concrete driveway measures 14 yards by 5 yards. The driveway will be 0.5 yards thick. How much will it cost if[..]