Harry is in a line at the store. He has 3 items that cost $5.95, $4.25, and $1.05. Explain how harry can add the cost of the items mentally before he pays for them

It is explained below

Step-by-step explanation:

Harry is in a line at the store and he has 3 items that cost $5.95, $4.25, and $1.05. To add them mentally, he can approximate each item. This will be:

$5.95 = $6

$4.25 = $4

$1.05 = $1

So by adding the approximated amount, he will have:

$6+$4+$1 = $11

So, mentally he'll know he has about $11 to pay.

The real cost of the 3 items is:

$5.95 + $4.25 + $1.05 = $11.25

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!