Which relations are functions
Select function or not a function for each graph
PLS HELP

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

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