Answer: 
Step-by-step explanation:
See the image attached, where "x" represents the height in feet of the hot air balloon.
Notice that:

To find the lenght of the side BC of the right triangle, you need to use the following Trigonometric Identity:

Observe that:

Substituting values and solving for "BC", you get:

Therefore "x" is:

Answer:
d = 10 m
Step-by-step explanation:
Given that,
tLauren is 6 meters straight behind Alexa and 8 meters directly left of Danielle. We need to find the distance between Alexa and Danielle. It can be calculated using Pythagoras theorem such that,

So, the distance between Alexa and Danielle is 10 m.
I believe the answer is 12 because if but in y= Mx+b format you would get 600= 50x. Then to solve you would dived 600 by 50 and get 12
Perimeter: Add up all of the sides of a shape
Area: Length times width