Answer:
2x+14
Step-by-step explanation:
(3/4)x-7.3+(5/4)x+21.3
(3/4+5/4)x+21.3-7.3
Sam and Martha will blink again in 24 seconds :)
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