9+10+1=? help... not really. GIRLS any girls want to spill your boy tea with me? :) i need to spill lol

20

Step-by-step explanation: 9 plus 10 is 19 plus 1= 20

20 is ans.

Step-by-step explanation:

9+10+1=20.

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.