In 1/8 of an hour miss wolf can grade 1/3 of a stack of papers how many hours will it take her to grade 2 stacks

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

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?