Find −9/14 + 2/7. write your answer as a fraction in simplest form.

Step-by-step explanation:

When you add fractions, sometimes you have to raise a number to make it more easier for you.

As in this case, we have two fractions in which seem to not be the same, but note this.

7 is multiple of 14, meaning to make our life easier, we can do this method:

Whoa! Now we have the same denominator for both fractions, now we made this problem way more easier than it was before.

Do the math:

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it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

10 glasses of juice could be made with 5 carrots, 1,500 orange juice, 2,000 papaya juice.