Laaa ! 50

what is the tropopause?

the boundary between the troposphere and the ionosphere

the boundary between the troposphere and the stratosphere

the boundary between the troposphere and the exosphere

the boundary between the troposphere and the mesosphere

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder

Multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?