They will ring again together at 10:15am. Because the common factor for 40, 48 and 60 is 240, which means 240 minutes, that equals to 4 hours. Hence 4 hours after 6.15am is 10.15am.
Hope this helps.
I believe your answer is D) y= 3/4x + 7
Answer:
3 > x > − 4 and your welcome bud