Boxes that are 12 inches tall are stacked next to boxes that are 18 inches tall what is the shortest height at which the two stacks will be the same

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers