There are 15 people to choose from and 4 places to put them in. how many of the groups include bob? (this is probability. i made up the problem because i don’t know how to do this and i have a test 4th hour! )

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?