X/2.7 + 3.6=4.8 solve for x

3.24

Step-by-step explanation:

1) minus the whole number, 3.6 from both sides:  

   x/2.7 +3.6 = 4.8 > x/2.7 = 1.2

2) multiply both sides by 2.7 to get the x value on its own:  

   x/2.7 = 1.2 > x = 3.24

3) finally x is on its own with a value on the other side... x = 3.24

18

step-by-step explanation:

i believe the answer is the polygon, heptagon.