Y+x+4=0

turn into something like this:
y=1/2x+7

y=-4-x

Step-by-step explanation:

subtract x and 4 from both sides to cancel the x and 4 from the left.

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !