Answer:
(See explanation for further details)
Step-by-step explanation:
Classification based on sides:
Equilateral - Three sides with same length.
Isosceles - Two sides with same length.
Scalene - No sides with same length.
Classification based on sides:
Acute-Angled - All angles are acute. 
Right-Angled - One angle is right. 
Obtuse-Angled - One angle is obtuse. 
Identity, <span>For example, x + x = 2x is </span>true for every value<span> of x.</span>
Multiply each hourly rate by x ( time to complete the work) add it to the service call for each and then set the equations equal:
50 + 40x = 30 +45x
Subtract 30 from both sides:
20 + 40x = 45x
Subtract 40x from both sides:
20 = 5x
Divide both sides by 5
x = 4
The length is 4 hours.
B. Liter is about 33 oz and quart is 32oz
Answer:
the value of x to the nearest tenth is 12 * x
