Let x be the unknown number
x×55%=121
x=121÷55%
x=220
So 121 is 55% of 220
you just have to move the decimal point 9 places to the right thats an easy trick to remember 1849900000
Well it would be (x+3)(x+3)
using the FOIL method you end up with:
x^2 + 6x + 9
:D
Answer:
A=2(1+2)a2=2·(1+2)·22≈19.31371
Step-by-step explanation:
hope this helps!
