A survey conducted by Black Flag asked whether or not the action of a certain type of roach disk was effective in killing roaches. 79% of the respondents agreed that the roach disk was effective. The number 79% is a A) parameter. B) population. C) statistic. D) sample. E) sampling distribution.

C) statistic.

Step-by-step explanation:

Here, 79% is a measure of proportion of respondents agreed that the roach disk was effective from the sample in he study.

So, The number 79% is a statistic.

Correct option: C) statistic

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

6e14 is the answer.