Margie says the set of numbers, 0.1, -1, -21
4
, 3, are in order from least to greatest. what is her error?
she did not use the correct common denominator.
the 3 is in the wrong place.
she treated all the numbers as positive.
the –1 should be the first number on the list.

What is the value of r of the geometric series?

Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form