A CD has 4 24" diameter, with a 32" diameter hole in the middle. What is the probability of a drop of water landing on the CD? ​

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?