A mayor estimates that 4,000 people will attend the first day of the county fair. A total of 8,400
people actually attend the first day of the fair.
What is the percent error of the mayor's estimate?
Round the answer to the nearest tenth percent, if
necessary.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be able to prepare using the sauce?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?