What is this? Can anyone help me

A maths problem, tricky one. Have some tea and let me solve. ☕

Step-by-step explanation:

Now for the second part i.e A+S=[?]

You have the (1)

From (1) you will get the values i.e number of people attending the play...

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