Answer:
.0666
Step-by-step explanation:
<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>
We have to combine the like terms
From given expression,
By distributive property,
The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.
a(b + c) = ab + bc
Therefore,
Solve for brackets using distributive property
Add 1/7 and 6/7
Thus the equivalent expression is found
Answer:A
Step-by-step explanation:
I would have to say the best answer would be Observational study because it cannot be experimental or nonrandomized studies because those two type of studies require to split a population into a group A or group B. It definitely cannot be a sample survey because it is not a survey. An observational study has lots of variables and tells you the result of the study.
Here you go :) Hope I can help