Here is the equation:

Since both decimals are negative, the answer will be positive.
- Negative times Negative = Positive
Divide both sides by -3.9 to leave the variable alone:

r is equal to 4 → r = 4
Answer:
I believe the answer 16
Step-by-step explanation:
All you have to do is count.
The estimated sum of the numbers fifty-eight (58) and twenty-nine (29) is equal to ninety (90).
<h3>What is the difference between a regular sum and an estimated sum?</h3>
In an estimated sum, the numbers are rounded; on the other hand, in a regular sum, the numbers are not changed.
<h3>What is the estimated sum of 58 and 29?</h3>
1. Round the numbers:
- 58 = 60 as this number is nearest to 60 than to 58.
- 29= 30 because of the same reason explained above.
2. Add the rounded numbers:
Learn more about estimated sum in: brainly.com/question/660898
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Answer:
Bedroom 1 and 2
Step-by-step explanation:
The area of Bedroom 1 is 121, which is less than 132.
The area of Bedroom 2 is 120, which is also less than 132.
The area of Bedroom 3 is 169, which is more than 132.
You are subtracting the results in the parenthesis.
I would go with a difference.
Since 8 is being multiplied by 23.6 and -7.8, I would say product.
"A" is the best answer choice.
I hope this helps!
~kaikers