2(5m+1)
= 2*5m+2
= 10m+2.
The correct answer is 10m+2~
Solution:- Given numbers to compare are 512 and 521 .
As they are 3 digit numbers
So, we have to compare hundreds place.
But hundreds are equal in both the numbers with digit 5.
Next we have to compare tens place.
Case 1 :- 1 ten is smaller in 512 than 2 tens in 521 .
So we get the result that,
512 is smaller than 521
or <em> 512 < 521</em>
Case 2:-2 tens is greater in 521 than 1 ten in 512 .
So we get the result that,
521 is greater than 512
or <em> 521 > 512</em>
for example, si te pones los zapatos antes que los pantalones, te costará mucho vestirte
See https://web2.0calc.com/questions/help_29603.
