A) you need to do 2+3=5 then divide £20 by 5 which equals 4, the ratio is 2:3 so you do 4x2 which equals 8 then you do 4x3=12. So your answer would be 8:12
10. 25/100 and 25%
25 divided by 25 /100 divided by 25 = 1/4
36 - 72 = -36
0 - 36 = -36
-100 + 64 = -36
-52 + 16 = 36
The answers are endless.
