Need with ! which one do i choose? ?

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.

The triangles are similar. what is the value of x? show your work.

What are the steps to solving the inequality 3b + 8 ≥ 14?