Answer:
1.0 - 0.6 = 0.4 (1.0 and 0.6)
OR
12.6 - 12.2 = 0.4 (12.6 and 12.2)
For this case we propose a system of equations:
x: Let the variable representing the length of the longer piece
y: Let the variable representing the length of the shorter piece
According to the statement data we have:

Substituting the second equation into the first we have:

Thus, the shorter piece is 30 cm.

Thus, the longer piece is 70 cm.
Answer:
The longer piece is 70 centimeters.
Answer:
C) 
Step-by-step explanation:
The function has been reflected in the x-axis, so -f(x)
then translated by 3 units down, so -f(x) - 3
Therefore, 
Answer:
B. 3 hours 30 minutes
Step-by-step explanation:
1 week=7 days
30 minutes each day for 7 days
=30 minutes×7 days
=210 minutes
60 minutes makes 1 hour
210/60=3 hours 30 minutes
Candida has 3 hours 30 minutes from now till her ballet recital to practice
B. 3 hours 30 minutes