8.45 lb; 2 significant digits. what are the two significant digits?

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Acabinmaker buys 3.5 liters of oat varnish the varnish cost $4.95 per liter what is the total cost of 3.5 liters

I’m stuck on this equation, anyone got the answer?