After Ricardo received his allowance for the week, he went to the mall with some friends. He spend half of his allowance on a new paperback. Then he bought himself a snack for $1.21. When he arrived home, he had $500 left. How much was his allowance?

the 4th choice is the correct one

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

the answer is b

25/6 hope it : )

step-by-step explanation: