homework help pleaseeeeeeeeee I beg !! math , algebra?

[sssss]

1. the base and height of a triangle are represented by 2x+4 and x-2. represent the area in terms of x

2. 4225=4900+c-2(4900)©=Cos 65 degrees solve for a which is 4225

3. Simplify x^2-16/2x^2-5x-12

Please its due in 1 hour , please help
#math #help

[greatrainstorm930]

1. A = 0.5 * (2x + 4)(x - 2) = (x + 2) (x - 2) = x^2 - 4

3. [(x + 4)(x - 4)] / [(2x + 3)(x - 4)] = (x + 4) / (2x + 3)

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