What is the point-slope equation of a line with slope-3 that contains the point
-8,-4)?
A. y-4 =-3(x-3)
B. y-4 = -3(x+ 8)
C. y+ 4 = -3(x+8)
D. y+ 4 =-3(x-8)

Find the domain of the following expression: 1/(√x)-2

If i purchase a product for $79.99 and two accessories for 9.99 and 7.00 how much will i owe after taxes applies 8.75%

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).