Which of the following arithmetic sequences have a common difference of ? 1.5,3,4.5,6,7.5 -4,-1.5,1,3.5,6,8.5

Sara has 2 2/3 cup taco meat. she needs 1/6 cup to make one taco. how many tacos can sara make with the taco meat she has?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is

Factor this polynomial completely. 12x^2+ x-6