To properly make the comparison between the weights of the books, we compute for their weights in similar units. For this item, we need to convert the weight of the first book to kilogram.
conversion:
Book 1 : (7.49 lbs) x (0.4535924 kg / 1 lb) = 3.397 kg
Since the second book weights 3.91 kg, it is heavier than the encyclopedia. Subtracting the weight of the first book from the second one will give us an answer of 0.51 kg. Thus, the answer to this item is letter D.
the answer is C.....................
70 times 6, which equals 430,step my step:6 times 0 is 0,6 times 7 is 42,=420,Hope this helps if u need me too explain further let me now.:)
When they reach 35 years 18,900,000,000,000 will be invested.