Answer:
Step-by-step explanation:
If you are trying to find the answer for x it would 20
ANSWER
1001
EXPLANATION
The sum of the first n - natural numbers is

The sum of the first 1000 terms is



The sum of the first 1001 terms is



The difference is

Answer:
not equivalent
Step-by-step explanation:
Given
= 
If the ratios are equivalent then ib cross- multiplying the 2 sides should be equal, that is
6 × 9 should equal 7 × 7
However, 54 ≠ 49
Thus the ratios are not equivalent