While on a business trip to Wildgrove, Dakota treated her co-workers to a meal that cost $100. Dakota knew that when the bill came, she would need to pay Wildgrove sales tax of 13% and would want to leave a 20% tip on the original $100. Including tax and tip, how much did Dakota's meal cost?

Step-by-step explanation:

The initial cost of the meal is $100

she would need to pay Wildgrove sales tax of 13%

This means that the amount of tax that she would pay is

13/100 × 100 = 0.13 × 100 = $13

She would want to leave a 20% tip on the original $100. This means that the amount that she would leave as tip is

20/100 × 100 = 0.2 × 100 = $20.

Therefore, the total cost of Dakota's meal including the tax and the tip would be

100 + 13 + 20 = $133

We know that there are 5 x 10^6 red blood cells in 1 mm^3 of Avi`s blood. And 1 liter = 1 x 10^6 mm^3.
There are E red blood cells in 1 liter of his blood.
E = 5 x 10^6 x 1 x 10^6 

E = 5 x 10^12 blood cells ( or : 5,000,000,000,000 ).