The second one is grammatically correct
3. The Crimean War.
Explaination:
The Charge of the Light Brigade was a failed military action involving the British light cavalry led by Lord Cardigan against Russian forces during the Battle of Balaclava on 25 October 1854 in the Crimean War.
Answer:
15
Explanation:
(x-5)(x+5)=200
FOIL Method (First, Outer, Inner, Last)
x^2-5x+5x-25=200
combine like terms
x^2-25=200
add 25 to both sides
x^2 = 225
Take the square root of both sides
x=15