Answer: 115 - (-30) = 115 + 30 = 145 degrees change
Step-by-step explanation:
<h3>Solution :</h3>
Distance between first tree and last tree is 140m .
And distance between each tree (d) = 5 m
let's solve for number of trees (n) :





hence, total number of trees = 29.
Sry I don’t know try Socratic