Question

Please help me solve

Answer 1

21%

Explanation:

U subtract 15 and 19 Because It increased 15 - 19= -4

Ignore the negative. Divide= 4/19= 0.21

The size went up by 21%

Answer 2

Explanation:

So for this we have to find the percentage by using 'percentage of error'

If at first it was 15 then it went up to 19 we have to subtract 15 - 19= -4

Ignore the negative. Now divide= 4/19= 0.21

The size went up by 21%