Carbon -14 decays exponentially according to the model A= Aoe ^-0.00012t where t is measured in years. If there was an initial amount of 700 grams how much would remind after 80 years?

after how many years would there be 215 grams?

Question 1(multiple choice worth 1 points)(07.06 mc)a group of students must collect at least $150 to organize a science fair. they have already collected $30. which graph best represents all remaining amounts of money, in dollars, that thestudents should still collect to organize the science fair? -210 -180 -150 - 120 -90-60 -300306090 120 150 180 210-210 -180 -150 - 120 -90 -60 -30 0 30 60 90 120 150 180 210-210 -180-150 - 120 -90-60-300 30 60 90 120 150 180 210-210 -180 -150 - 120.90 -60 -30 0 30 60 90 120 150 180 210

Based on the figures as marked, /\rqs = —

Average acceleration: i have no idea how to do this.