Answer:
40%
Step-by-step explanation:
There are 18 red candles and 27 blue candles, so 45 candles in total.
To find what percentage 18 candles would make of a total of 45 (100%) candles, we need to first multiply 100 with 18, then divide the product by 45:
100 × 18 ÷ 45 = 40
