Last month, Bill's electric bill was $80.77. This month, Bill's bill was $69.06. What is the percent decrease?

0.01
0.16
0.15
0.14

my answer is 0.15

I don't think any of those answers is correct. The question asks for the percent decrease.

The percent decrease is 15%, not 0.15.

yeah :/ and I don't know which I should be them

I'd tell your teacher that none of them is right. Tell him/her that the correct answer is 15%.

actually, I get 14%

The decrease was $11.71

11.71/80.77 = .1449

which is closer to .14 than .15

Pick 0.14 - 0.14 is 14%
just expressed as a decimal.

The wording is not optimal, but the two values are identical.

Steve is correct. It's 14%.

To find the percent decrease, you need to calculate the difference between the two amounts and then divide it by the original amount. Afterward, you multiply the result by 100 to get the percentage.

The formula for percent decrease is:

Percent decrease = (Difference / Original amount) * 100

In this case, the original amount is $80.77, and the difference is calculated by subtracting the current amount ($69.06) from the original amount:

Difference = $80.77 - $69.06 = $11.71

Now, divide the difference by the original amount:

Percent decrease = ($11.71 / $80.77) * 100

Calculating this gives us:

Percent decrease = 0.1448 * 100

Rounding the result to two decimal places, the percent decrease is approximately 14.48%.

Therefore, the correct answer is 0.14.