21 its 21 because it is 21
2^3 is equivalent because if you count the number of twos there are in the parentheses its 3.
1.Mon 2. 19 or 20 3. 4 or 3 4.it’s like stairs but
Ok. So since they give you that 1/2 cup of soup equals 120 milliliters it makes this very easy. So since we know 120milliliters=1/2 and that 3 1/2= 7 1/2s (please note that the 7 1/2s doesnt mean seven and 1/2 it means seven 1/2s) you just add 120 to itself 7 times getting an answer of 840. (please vote brainliest ^^)
If u mean 4^4 or four to the fourth power then it’s 256