Multiply each equation by a number that produces opposite coefficients for x or y. 1x - 1y = 100
3/8x + 7/8y = 2000

Percent increase and decrease. original number: 45 new number: 18

Angle that produces maximum distance

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?