Answer:
They are both right becuase if you just take away 1 from 20 and 10 you get 2 and 1. For the 4:2 one take away 1 and mutiply by 2 equalling 4:2 but they are still the same thing.
Step-by-step explanation:
The ratio would be 2:6 or 1:3 in its simplest form.
The ratio 12:20 because you need it to be equal to 3:5. 3 times 4 which makes 12 so you need to multiply 5 with 4 too
Answer:
Because the coin is tossed 7 times and you get 2 outcomes (head or tail) for each one.
It is B because those two angles make it complementary
