Step-by-step explanation:
x=sqrt30^2-25^2 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â b.) 16.58
it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.
step-by-step explanation:
copy and paste, put it in google
answer: it's a