When a certain kind of bacterium takes a step, it moves 3 × 10-7 meters. When Joe takes a step, he moves 0.75 meters. How many times larger is Joe's step than the bacterium's step?

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

∆red ≅ ∆ by rule will give brainiest if possible

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.