—Hello. I’d like to speak to Julie, please. —I' m afraid she isn't here right now. ______? —Yes. This is her friend Mark. I' m calling to ask her if she’d like to see a movie tomorrow night. —Okay. I' 11 give her the message. —Thanks.
【单选题】Luis is consuming his optimal consumption bundle of pizza and tacos. The marginal utility associated with the last pizza he consumes is 1 util, and the marginal utility associated with the last taco i...