During September 2009, the price of coffee rose from $2,450 per pound to $2,600 per pound. If the demand fell from 170 pounds per day to 130 pounds per day, calculate the price elasticity of demand for coffee using the mid-point method.

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|

answer: 12   they all have at least 28 days

step-by-step explanation: haha