<h3>The weight of small package is 5 ounces</h3>
<u><em>Solution:</em></u>
The price of mailing a small package is $0.32 for the first ounce
$0.21 for an additional ounce
Let "x" be the additional ounces
From given,
Simone paid $1.16 to mail her package
First ounce = $ 0.32
Therefore,
Money paid for additional ounces = 1.16 - 0.32 = $ 0.84
Given that,
$0.21 for an additional ounce
Therefore,

Thus weight of package = first ounce + 4 additional ounces = 5 ounces
Thus the weight of small package is 5 ounces
Answer:
The expected number of defective batteries to be pulled out is 0.9, which rounded to the nearest integer gives a total of 1, that is, 1 of the 3 batteries is expected to be defective.
Step-by-step explanation:
Given that a box contains 3 defective batteries and 7 good ones, and I reach in and pull out three batteries, to determine what is the expected number of defective batteries, the following calculation must be performed:
3 + 7 = 100
3 = X
10 = 100
3 = X
3 x 100/10 = X
300/10 = X
30 = X
3 x 3/10 = X
0.9 = X
Therefore, the expected number of defective batteries to be pulled out is 0.9, which rounded to the nearest integer gives a total of 1, that is, 1 of the 3 batteries is expected to be defective.