Margie says the set of numbers, 0.1, -1, -21, 4, 3, are in order from least to greatest. what is her error?

1. she did not use the correct common denominator.
2. the 3 is in the wrong place.
3. she treated all the numbers as positive.
4. the –1 should be the first number on the list.

idk this answer sorry cant on this one.

step-by-step explanation:

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°