Write an expression equivalent to 8(3/4x-1/4)-6(12-x) using the fewest possible terms.

Which statement about perfect cubes is true

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 =

When a number is decreased by 9.9% the result is 40. what is the original number to the nearest tenth? super urgent