2x - 8 < 12
2x < 12 + 8
2x < 20
x < 20/2
x < 10
A = 75
B = not sure
C = 156
So the answer is A. Hope it helps :)
Hope this is understandable.
The area of the triangle will then be 9 times as great.
The formula of the area of a triangle is 1/2bh, so if the base has been tripled and the height has been tripled, you're essentially multiplying 3 to the original equation twice (3 x 3 = 9).
15 degrees lower than 7 degrees means that we have to subtract.
So we have 7 degrees and it wants 15 degrees lower, so we would do 7 - 15
And so 7-15 = -8
So 15 degrees lower than 7 degrees would be -8 degrees. :)
