When multiplying fractions, multiply row by row. 5×1=5 over 3×7=21. So we get positive (becayse negatives cancel each other) 5/21. We can't simplify it any further so thats the answer. Hope this helps!
I don’t know but try whatever you guys tell you
Answer:
square root of 25 <square root of 51 <square root of 81
5 <7.14 <9