Answer:
512.45
Step-by-step explanation:
312+199.95=512.45
<em><u>Answer 1: 177 – 77 = 100 </u></em>
<em><u>Answer 2: (7+7) * (7 + (1/7)) = 100</u></em>
Answer: 1.375
Im not good at it, but this may be right?
Circle