A => b over ¬a => ¬b. What kind of statement is the second to the first?

What’s the numerical coefficient of 6xy

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Round each of the decimals to the nearest hundredth a. 0.596 b. 4.245 c. 53.6843 d. 17.999