How many equal slices are in a cake that are in a cake that is divided into quarters?

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

Based on the diagrams, what is the value of x?

Adie is rolled, what is the probability of getting an even number or a 3? write the solution too