Answer:
The answer would be 20.42
Step-by-step explanation:
I cauculated. The correct answer, pls brainliest ;)
Thx,
kiniwih426
I believe it is D. Hope this helps!
12+4+9+13+7+11+5+2+_+_ /10= 8
x10 both sides
12+4+9+13+7+11+5+2+_+_=80
63+_+_=80
-63 both sides
_+_= 17
any two numbers that add up to 17 can go in the planks
7,10