Which equation has infinitely many solutions? A 12 + 4a = 6a + 10 - 2a
B) 5a + 14 - 4a = 23 + a - 9 C) a + 9 - 8a = 2a + 17 - 8
D) 4a - 2a = 20

Beth makes batches of bluberry muffins and banna muffins. each batchis 6 muffins. she makes 2.5 batches of bluberry muffins. how many batches of bananna muffins should beth make if she wants to have a total of 60 muffins?

If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?