The ratio of young men to young women at the ball was 8 to 9. if 240 young men were in attendance, how many young people attended in all?

This is the answer you are looking for (sry I needed to write something)

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb