Answer:
1:4
Step-by-step explanation:
There are only two colours available, red and green. We know that there are 11 red marbles and 55 marbles altogether, so the number of green marbles must be 55 - 11, or 44. That means that the ratio of red to green marbles is 11:44, or 1:4.
(linear pair angles)
(corresponding angles)
1.37
1
15 litres
129.6 m² needs 8L
1m² needs 8/129.6L
243m² needs (8/129.6)×243 = 15L