Find the measure of x and y:

x= 21

y= 29

Step-by-step explanation:

First, find y. To do this the equation you need is, (4y+4)+60= 180.

Step 1

Add common numbers.

4y+(60+4)= 180

4y+64= 180

Step 2

Subtract 64 to both sides.

4y+64= 180

    -64   -64

4y= 116

Step 3

Divide both sides by 4 to isolate the variable.

4y= 116

4     4

y= 29

Now, to find x.

Since (3x-3) and 60 are alternate angles, they equal each other. So, your equation is..

3x-3= 60

Step 1

Add 3 to both sides.

3x-3= 60

 +3   +3

3x= 63

Step 2

Divide both sides by 3 to isolate the variable.

3x= 63

3     3

x= 21

(a) the volume of the cone is 20/3 in3

hence, option a is correct.