If an item cost $19.54, why might somebone give the sales clerk a $20 bill and 4 pennies

Someone might give a twenty-dollar bill and four pennies because twenty dollars is very close to nineteen dollars and fifty-four cents and with the four cents, it could be just extra coins they had on them. To get change with whatever their buying.

Step-by-step explanation:

I hoped this helped!! ;^^

- 1.613 = -1.6 or -1.61

-1.522 = -1.5 or -1.52

0.587 = 0.6 or 0.59

3.079 = 3.1 or 3.08