Given:
Carlos buys a game for $7.89 and some batteries for $5.49. He pays with a $20 bill.
To find:
The best estimate of the amount of change he should get.
Solution:
First we need to approximate the data values.


Now, the total cost of game and batteries is

He pays with a $20 bill.


Therefore, the estimated amount of change is $6.50.
<span>the probability the probability that she will win the prize quilt:
= 15/250
= 0.06
= 6%
</span>