I would say D hope this helps thank you:)
The correct answer is 9y + 3
Explanation:
The perimeter of a triangle can be find by adding its sides. This means to find the perimeter of the triangle shown it is necessary to add the three expressions given. Additionally, in this case, the expressions combine the letter y and regular numbers.
Due to this, the first step is to add all the "y" expressions and the numbers beside them, this means 2y + 4y + 3y = 9y, and then, the numbers remaining: +5 -2 =3. According to this, if the three sides are added to find the perimeter the final expression is 9y + 3.
Answer: Tanks. In 1914, the “war of movement” expected by most European generals settled down into an unexpected, and seemingly unwinnable, war of trenches, Flamethrowers, Poison Gas, Tracer Bullets,
Gear Air traffic control,
Depth Charges, and Hydrophones.
Explanation: Machine gun - The machine gun was improved during the war. It was made much lighter and easier to move around. Flame throwers - Flame throwers were used by the German Army on the western front in order to force the enemy out of their trenches. Chemical weapons - World War I also introduced chemical weapons to warfare. Hope this helps!
Explanation:
This'll make it easy : https://www.bbc.co.uk/bitesize/topics/zqhyb9q/articles/zkb86v4
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