I believe the answer is A. because the theory of continental drift and sea-floor spreading causes new rock to form and creates the old rock .. older
when you multiply sum by a number like (7+9)plus 5 it is the same as multiplying each added by that factor (7time5)plus (9time5)
Q8 (division sign) 4
sorry my macbook doesn't have a division sign
Answer:
fred = 45 books
sally has 27 times more book than fred
sally = 45 X 27
= 1215 books