Find the ratio of the given one: 20/200 = 0.1
this means the sugar (y) is 0.1 amount of soda (x)
Multiply the amount of soda by 0.1:
Formula is y = 0.1x
Richard and Teo are 7 and 24.
7 times two is 14
24 is ten more than 14
31-7 is 24
Here 5 - 4/9
multiply 9 and divide 9 to 5. It gives 45/9.
Hence, above fraction becomes,
45/9 - 4/9 = (45 - 4) / 9 = 41 / 9
Hope it helps.
It is the first one because if u gain an amount and lose that same amount you don't gain anything.
25-25=0