Answer:

Step-by-step explanation:
Let be "s" the length in meters of the short piece and "l" the lenght in meters of the long piece.
Set up a system of equations:

Apply the Substitution Method to solve the system. Substitute the second equation into the first equation and solve for "l":

Susbstitute the value of "l" into the second equation in order to find the value of "s". This is:

Answer:
B is the correct answer accordingly to your question
Domain = {x|x = 2, 9, 6}
Range = {y|y = c, 0}
I think this is the answer? I tried, it's better to fill it in than to leave it blank :/
Answer:
72 degrees
Step-by-step explanation:
the temperature rose 15, and ended as 87, so the temp was 72 before it rose