9. If you sell 45 2-liter sodas and end up with $90, what is
your marginal revenue?

Brainliestttme : describe the following event: increase in islamic extremism in the middle east

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

Which of the following cultures were among the earliest known inhabitants of north america? a) mayab) incac) anasazi d) olmec