It is 23/100 just say it and then write it
Answer = 48.72
First find 16% of 42 which is just 16/100×42 which is 6.72 and then added 42
50 = x^2
To isolate x you need to do the opposite of an exponent, which would be square root.
= x
That is the exact form, in other words your answer, if teacher is looking for a decimal, it would be
7.07 = x