A sleep study found that the number of hours each person slept was normally distributed. The study found that the average person slept 8.2 hours with a standard deviation of 0.7 hours. What range of hours of sleep are the 99.7% closest to the mean?

Find the slope of a line given the following two points

The graph shows the charges for a health club in a month. make a function table for the input-output values. writes an equation that can be used to find the total charge y for the number of x classes

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?