Answer:
y=1/2x-5
Step-by-step explanation:
The height of the tree is about 30 feet.
tan(55) = h/21
*21 *21
21*tan(55)=h
29.99=h
h=29.99=30 feet
3x+5 =x+2
3x-x=2-5
2x= –3
x=-3/2
4y+7=y+3
4y–y =3-7
3y=–4
y= —4/3