I’m kind of in a rush so I’m not sure about these answers to be honest . But I THINK 7 is c?? And 8 might be 30? You might want to wait for someone else to answer just in case
The image represent the graph of the function.
//Hope it helps.
Answer:
B. Distributive property.
Step-by-step explanation:
The expression is simplified by expanding it using the distributive property which says for any real numbers 
and 
and upon simplification the expression becomes:
Answer: x=12-y
2x+2y=24
2x=24-2y
x=12-y
Let p and w represent the speed of the plane and the speed of the wind, respectively.
.. speed = distance/time
.. p +w = 720/3 = 240
.. p -w = 720/4 = 180
Add the two equations to eliminate w.
.. 2p = 420
.. p = 210
.. w = p -180 = 30
The speed of the wind is 30 mph.
The speed of the plane in still air is 210 mph.
