a.) It will take you 1,000,000 / 19 = 52,631.58 minutes = 52,631.58 / 60 = 877.19 hours = 877.19 / 24 = 37 days to spend $1 million.
b.) A penny is 1.55 mm thick, thus 1 million penny will be 1 million x 1.55 = 1,550,000 mm high.
c.) A quarter is 1.75 mm thick, thus 1 million quarter will be 1,000,000 x 1.75 = 1,750,000 mm high.
d.) 1000 mm = 1 m
Therefore, $1 million worth pennies will be 1,550,000 / 1,000 = 1,550 m high.
e.) $1 million worth quarters will be 1,750,000 / 1,000 = 1,750 m high.