Answer:
10
Step-by-step explanation:
Each box is worth 2 units, because the x and y axis are counting by 2s
X= 10. Should be pretty easy
3x+7=22
Subtract 7 to both sides
3x=15
Divide by 3
x=5
Get total lengths by multiplying:
10 x 12.6 = 126
6 x 16.1 = 96.6
Add the total lengths together and divide by 16:
126 + 96.6 = 222.6
222.6 / 16 = 13.9125
Rounded to 2 decimal places = 13.91
answer: 13.91
