A survey of 150 11th and 12th graders was given to determine what their favorite snack was. 90 said candy (40 of which are juniors). 40 said Chips (15 were seniors), and 15 juniors and 5 seniors said popcorn was their favorite. How many total preferred popcorn?

d is correct

step-by-step explanation:

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