What is the factored form of the expression? k2 - 9h2

The interior angles of a triangle have measures 75 degrees, (-5w+125) degrees, and (4w+85) degrees. what is the value of W?

A grocer's shop sells carrots, onions and cucumbers. The ratio of carrots to onions is 3:4 The ratio of onions to cucumbers is 6:5. Work out the ratio of carrots to cucumbers. Write the ratio in its simplest form.

the width of a rectangle is three less than four times the length. the perimeter of the rectangle is 29 centimeters. find the dimensions of the rectangle.

How many 3/4 foot pieces can clark cut out from the 7 1/2 feet of wire

Solve x. 10 (2x - 4) = 100x

Can someone explain how to simplify a (b+c) ?

Solve for x. - 1/2 (x 2) 1 1/2x=3

What number is 68% of 12?

Mel and Ken want to refinish the community center gym floor. The rectangular floor is 15.2 m wide and 25.6 m long. If 1 gallon of polyurethane covers about 180 square meters, how many gallons should Mel and Ken buy?

How can you show me how you solve 3,986 divided by 71.