The answer to this question would be: 10,000
In rounding up a number, you need to see the number 1 digit below the digit you want to round. In this case, you want to round up to nearest ten thousand, which means 1 digit below it would be thousand.
From 13,501 number, the thousand value would be 3. Since 3 is lower than 5, it will round down to 0. The result would be 10,000
'of' means multiply
1/4 of (1/4 times ) the opposite of (-) difference of 5 and a number (5-n) is lesss than 20 (<20)
1/4 times -(5-n)<20
multiply both sides by 1/4
-(5-n)<5
multiply both sides by -1 remember to flip sign
5-n>-5
add n
5>n-5
add 5
10>n
n<10
the number is any number less than 10
We can’t help if we don’t have context...where’s the number line.
