I NEED HELP FAST! THERE ARE TWO QUESTIONS AND THIS IS ELA ILL GIVE BRAINLIEST! 1. Select the interjection in the sentence.

These cookies that my Mom baked are Delicious, huh?

2. Several cars had to stop to allow a mother duck and her babies to walk across the road.
What does the word 'Across' As A(n)?
A. Adjective
B. Conjuntion
C. Interjection
D. Preposition
CHoose

In ancient egypt, the pharaoh collected from the peasant farmers. a. oil b. gold c. lumber d. taxes

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?