Square A'B'C'D is a dilation of square ABCD what is a scale factor

enter answer in the bow

Asap describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x)=-5.8sin x. g(x)=sin x. a: vertical stretch by a factor of 5.8, reflection across y-axis. b: vertical stretch by a factor of 5.8,reflection across x-axis. c: horizontal stretch by a factor of 5.8, reflection across x-axis. d: horizontal stretch by a factor of 5.8 reflection across y-axis.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b