Answer:
2115 = 9:15 PM
0830 = 8:30 AM
Step-by-step explanation:
12 - hour conversion.
According to my calculations it should be 77
Answer:

Step-by-step explanation:



I think it may be 5+3 and carry the one up top to get the sum of 56.
Answer: 
Step-by-step explanation:
The formula for area of a triangle is 
Now we have to isolate for w.
First multiply by the 2 which is the reciprocal of 1/2 to cancel it out.

Now divide by h to isolate w.