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The answer is B 803.8cm^2
A quarter of an hour is 15 minutes, so a quarter past 7 is 7+15 mins. This gives you:
7:15
Hope this helps and good luck!
So, if k/9=3/9, then k=3, because it is a variable substituting 3. :D Hope I could help!
The legs are 12 cm each, so the hypotenuse is√(144+144)=12√2☺☺☺☺