The agricultural practice of irrigation leaves behind which pollutant in the soil?
O A. Salt
B. Acidic compounds
C. Nitrogen compounds
D. Pesticides

The answer is Salt !!

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made

If i have 20$ and i gave 5$ away how much i got

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25