Can you me with this calculation? : what is 2x2

If you use the X symbol on you calculator, the one and only accurate answer would be 4 in this situation, you could just say 2 plus 2 and you get the same answer! 

hope this helped you in the future! ;)
  

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.