If an astronomer's hypotheses provide a calculus consistent with the observations,
A. the astronomer's work is sufficient.
C. the present author is wrong.
B. the astronomer's work is faulty.
D. the observations are wrong.

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

Explain how you divide powers with like bases.discuss why the bases have to be the same.how are these rules similar to the rules for multiplying powers with like bases.