The base is the number being raised to a power: (5/4).
The function is defined for all values of x, so the domain is (-∞, ∞).
The function given in this problem statement only has one value. That is the entirety of its range: [3(5/4)^3, 3(5/4)^3].
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Usually, an exponential function will have a range from 0 to infinity, not including either: (0, ∞). For that to be the case, we expect to see x in the exponent somewhere.
The triangle formed by RST is the same as the triangle formed by XYZ. If length RS is 13, YZ is 11, and XZ is 9, then RS = XY = 13. The answer is A.
