The length of a rectangle is twice it’s width if the perimeter of the rectangle is 60 yards find its length and width

2x minus y equals 6, x plus y equals negative 3

The formula to determine energy is e=1/2mv2? what is the formula solved for v?

Megan and desmond each add the same amount of water to their aquarium megan makes 5 ml of chemical solution with every gallon of water for her aquarium desmond mixed 8 ml of chemical solution for every 2 gallon of the water for his aquarium.