Where where is the formula you didn't even post a picture?
Answer:
25 ft
Step-by-step explanation:
The 2 triangles are similar hence the ratios of corresponding sides are equal, that is
=
= 5
multiply both sides by 5
x = 5 × 5 = 25
The height of the tree is 25 ft
Sequence 1 is arithmetic because it is being subtracted by 16.
Sequence 2 is geometric because it is being divided by 2.
Arithmetic is when you're adding or subtracted and geometric is when you multiplying or dividing.