Answer :
Answer:
A
Step-by-step explanation:
6 blue cassettes × 45 min = 270 min
8 green cassettes × 55 min = 440 min
270 min + 440 min = 710 min
Answer:
A
Step-by-step explanation:
6 blue cassettes × 45 min = 270 min
8 green cassettes × 55 min = 440 min
270 min + 440 min = 710 min