Aparticle starts from rest at x=8 and proceeds with a simple harmonic motion so that after 2 seconds it reaches x=4 find an expression for the displacement an=t any time t

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?