The fountain in the pond at the public park near kevin's house has a pump that recirculates 75 gallons of water in 1/4 of an hour. express this rate as a unit rate in gallons per hour

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !

Over the last 4 seconds, a snail has traveled 4/9 of an inch. if the snail traveled the same distance each second, how far did it travel each second?

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.