WILL GIVE BRAINLIEST!

B

Step-by-step explanation:

So first off, the question is saying to find the difference so that means you subtract. Then it says that the number has to be at least 15 so that means that the inequality sign is greater than or equal to. Since you are subtracting you must add 13 to both sides to cancel it out and x would equal 15+13. So that makes the inequality true since the total is 28. You see if the answer would've been the first one then, the inequality would not have been true since the number 2 is not at least the number 15. Hope this helps

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

hope to and hope that my answer is brainliest.(follow me )