What is 0.15+0.36 equal to?

The answer is 0.51 because you just add decimals

To do this we just need to add.

      1 (carried #)
   0.15
+ 0.36

   0.51
 
So, 0.15 + 0.36 = 0.51. We do this like any other addition question and just add the decimal were it's supposed to go.

Hope I helped ya 
    

The correct answer is -20y