Answer:iiii
Step-by-step explanation:
Distribute the

And combine the s terms and you should be able to solve it
In order to solve a proportion you need to cross multiply, so you would do:
4x20 and 9xX and you would get...
9x=80
then divide by nine to get
x=8.8888888889
which is technically 8.9
Answer:
x=2/11 hope is right
Step-by-step explanation:
Answer: 8.2×10^-3
Move the decimal over three places to eliminate unnecessary numbers (0s). Since you are moving the decimal to the right it will be 10 to a negative number.