Write radical expression in exponential form: 8 divided by 7th root of x to 15th power

Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true

Which of the following is the shape of a cross section of the figure shown below

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?