Solve for the indicated variables: p=r-c; solve for c

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 =

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship