Yvaries inversely with x, y=2.5 when x=5, what is the value of k, the constant of inverse variation?

Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. the douglas-fir is a conifer tree that grows in the taiga biome. it has an average height of about 70 feet, and its wood is an important source of lumber.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !