If a family has already got four boys, then the next baby is more likely to be a girl than a boy. Is this correct?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)

What are the interpretations of the line 3x - 15y = 60? x-intercept y-interception a: x 20 - y -4 b: x 5 - y 20 c: x -3 - y 15 d: x -4 - y 20