Prealgebra.. examples for each one are commutative property, associative property, additive identity property and additive inverse property.

Step-by-step explanation:

Lets first understand what each of these properties are.

Problem 1

This is an example of the additive inverse property because -2 + 2 = 0.

Problem 2

This is an example of the associative property because the numbers are grouped differently, but still equal each other.

Problem 3

This is an example of the commutative property because the numbers are arranged differently but still equal each other.

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

answer: options?

step-by-step explanation: