The units are ordered smallest to largest from top to bottom:
Picometer (pm) = 1 x 10⁻¹² meters
Nanometer (nm) = 1 x 10⁻⁹ meters
Micrometer (um) = 1 x 10⁻⁶ meters
Millimeter (mm) = 1 x 10⁻³ meters
Centimeter (cm) = 1 x 10⁻² meters
Decimeter (dm) = 1 x 10⁻¹ meters
Meters (m) = 1 meter
Kilometers (Km) = 1 x 10³ meters
Note: You missed to add the dot plots chart. As I found the chart after a little research. Thus, I am attaching it and based on that dot plot chart I am solving the question which anyways would clear you concept.
Answer:
'There are about 2 more students in each class at Oak Middle School than at Poplar Middle School' is the correct statement.
Step-by-step explanation:
From the diagram, it is clear that
The data set containing Poplar Middle School:
20 20 20 21 21 21 21 21 22 22 22 22 22 22 22 23 23 23 23 24
The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:



The data set containing Oak Middle School:
20 21 21 22 22 23 23 23 23 24 24 24 25 25 26 26 27 27 28 29
The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:


So, the difference in mean will be:

Therefore, 'there are about 2 more students in each class at Oak Middle School than at Poplar Middle School' is the correct statement.
Answer:
The north campus had 600 students (180 music majors)
The south campus had 400 students (280 music majors)
Step-by-step explanation:
x = number of students at the north campus before the merger
If the total of students for the two school is given as 1000, so:
(1000 - x) = number of students at the south campus before the merger.
The equation for music major is:
0,3x + 0,7(1000-x) = 0,46(1000)
0,3x + 700 - 0,7x = 460
0,3x - 0,7x = 460 - 700
- 0,4x = -240
x = -240/-0,4
x = 600 -----> total number of students at the north campus
600*(0,3) = 180 music majors at the north
100 - 600 = 400 ------> total number of students at the south campus
400*(0,7) = 280------>music majors at the south
There are no numbers that are both prime and square.
In addition, only one prime number is even, which is 2.