If a tree is 30 feet tall and the model is 15 mm = 4 feet, what is the height of the model tree

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Cate purchases $1600 worth of stock and her broker estimates it will increase in value by 4.2% each year. after about how many years will the value of cate's stock be about $2000