The point (2, 4) is on the graph of f(x) = x2. What is the value of b if the point (0.5, 4) is on the graph of f(bx)?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Find the domain of the following expression: 1/(√x)-2

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.