Which expression is equivalent to 8(a-6)

a. 8a-48

b. 2a

c. 8a-6

d. 48a

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

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 =