What is the surface area of a cube with each side measuring 5 cm?
+
Math question: In triangle ABC, if angle A = 60 degrees, side a = 10, and side b = 8, find the measure of angle B. (
+
Question: Consider the constant function f(x)=c, where c is a fixed real number. If f(x) is constant for all real values of x, what is the value of f(3) when f(7)=4?