It is thirteen because you have to add to 6 till you get eleven and you go up 8 more and then you subtract it all and get your answer
The answer is b to be sure
Hi! :) 19.7 - 6.8 is 12.9. If you need anymore help, ask me!
Yes
remember you can do anything to an equaiton as long as you do it to boh sides
ad try to get unknown to one side
9n-10=4n+10
minus 4n both sides
9n-4n-10=4n-4n+10
5n-10=0+10
add 10
5n+10-10=0+10+10
5n+0=20
5n=20
divide both sies by 5
5n/5=20/5
5/5n=4
1n=4
n=4
two thousand ten and eight tenths
