A car travelled 300 miles correct to the nearest 50 miles. Write the limits of accuracy for the distance travelled.

Name the most appropriate metric unit for each measurement

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x