The first week at javier's new job he spent $12.48, $9.50, $10.25, $4.99, and $8.59 on lunch.
in the second week, he spent $3 more in total for the 5 lunches than the first week.
what is the increase in the mean for the second week compared to the first?

Mean for 2nd week increased by 6.51 % or by  0.6 value compared to the 1st week.

Step-by-step explanation:

Money spend in 1st week = 12.48 , 9.50 , 10.25 , 4.99 , 8.59

Total Money Spend in 1st week = 12.78 + 9.50 + 10.25 + 4.99 + 8.59 = $ 46.11

In 2nd week he spend $3 more.

So total Money Spend in 2nd week = 46.11 + 3 = $ 49.11

Mean of 1st week =

Mean of 2nd week =

So, increase in mean from 1st week = %

Therefore, Mean for 2nd week increased by 6.51 % or by  0.6 value compared to the 1st week.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|