evaluate each expression using properties of numbers. Name the property used in each step. 1. 6.4+2.7+1.6+53 2. 4/3×7×3×10

1.  

2.  

Step-by-step explanation:

Given

1. 6.4+2.7+1.6+53

2. 4/3×7×3×10

Required

Evaluate

Solving (1):

Using Cumulative Property of Addition; We have

Solving (2):

Using Cumulative Property of Multiplication; We have

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.

i am unable to solve this problem

step-by-step explanation: