Acrystallographer measures the horizontal spacing between molecules in a crystal. the spacing is 19.78 nm. what is the total width of a crystal in millimeters 105 molecules across? write your answer as a decimal.

Apackage contains 1.33 lb of ground round. if there’s 29% fat, how many grams of fat are in the round? i got 175 g but the textbook says the answer is 91 g of fat. how?

Can someone me with questions 15 to 17 plz.

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's