Answer:
Yeah, D is the right anwser!
Step-by-step explanation:
I would be here for way to long to type up the explanation. And I don't have time to waste.
Sara's score in the sixth test is 98.
<h3>HOW TO CALCULATE TOTAL FROM MEAN?</h3>
The mean of a set of data can be calculated by dividing the total sum by the number of data given.
According to this question, Sara is said to have a mean score of 62 in 5 tests and another mean score of 68 in 6 tests.
- First total score = 62 × 5 = 310
- Second total score = 68 × 6 = 408
Therefore, Sara's score in the sixth test can be calculated by subtracting 310 from 408 to give 98.
Learn more about mean at: brainly.com/question/521501
80/60 = (80 + 2x)/(60 + 27)
80/60 = (80 + 2x)/87
4/3 = (80 + 2x)/87
3 . (80 + 2x) = 4 . 87
240 + 6x = 348
6x = 348 - 240
6x = 108
x = 18
The term equivalent to 
is :
It is 729
We get this by doing 3x3x3x3x3x3
