Find the surface area and volume of the composite figure. Use 3.14 for π and round to the nearest tenth if needed. Please show step by step, I'm really struggling with this.

The above figure consists of three different shapes, that is :

Let's solve for surface area of whole figure :

1. Curved surface area of hemisphere : -

2. lateral surface area of Cylinder : -

3. curved surface area of cone :

(by Pythagoras theorem)

Surface area of the figure :

Now, let's solve for volume :

Volume of given figure will be combined volume of the all three shapes,

1. Volume of hemisphere :

2. Volume of Cylinder :

3. Volume of cone :

The total volume of the given figure :

or

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.