Which one of the following items is an example of software

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

Find the interior angle of a regular polygon which has 6 sides