Answer:
what is the question and i can help u i am a math tutor for 6th grade
Step-by-step explanation:
Answer: -3
Step-by-step explanation: 15 - 18 = -3
2 and 4 are both correct statements.
Mercury: 87 24/25
Venus 224 7/10
Mars 686 49/50
All we need to do is to convert fractions so they have a denominator of 10, 100, 1000 etc.
87 24/25 = 87 96/100
224 7/10 stays the same
686 49/50 = 686 98/100
Now we can easily convert them into decimals:
Mercury: 87.96
Venus: 224.7
<span>Mars: 686.98</span>
That's Roman numerals but it is 1636 not as Roman numerals hope I helped