The contrapositive of the statement p ⇒ q is not q ⇒ not p and both the statements are equivalent.
So, the contrapositive of the statement "If it is Friday, then Bruce has beans for supper" is "If Bruce does not have beans for supper, then, it is not Friday"
This is the last statement given and is the answer.
Negative exponents work like this:

So, in order to evaluate a negative exponent, you simply have to invert the base, and then raise to the positive equivalent of the exponent.
As an example, here are the first three exercises:



You can work out the rest applying this logic.
The answer is C. Just divide all of the fractions and use the decimals to see which is bigger/smaller.
Answer:
40g= 36 in degrees (decimal), and 36 degrees 0' 0" in degrees (Minutes&Seconds)
Step-by-step explanation: