GRE Exam Numerical Ability Area and Volume

A base of a triangle has length b, the altitude corresponding to the base has length h, and b 5 2h. Which of the following expresses the area of the triangle, in terms of h ?
(A) 1/2 * h^2
(B) 3/4 * h^2
(C) h^2
(D) 3/2 * h^2
(E) 2* h^2

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GRE Other Question

How many different two-digit positive integers are there in which the tens digit is greater than 6 and the units digit is less than 4 ?
(A) 7
(B) 9
(C) 10
(D) 12
(E) 24 Steve’s property tax is $140 less than Patricia’s property tax. If Steve’s property tax is $1,960, then Steve’s property tax is what percent less than Patricia’s property tax, to the nearest 0.1 percent?
(A) 6.7%
(B) 7.1%
(C) 7.5%
(D) 7.9%
(E) 8.3%