A finance magazine did a survey and found that the average American family spends $1,600 on a summer vacation. If the distribution is normal with standard deviation $411, find the amount a family would have spent to be the 80th percentile.

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187