Question

1+1+2+2+3+3+4+4+5+5+6+6+7+7+8+8+9+9​

Answer 1

Answer:

90

Step-by-step explanation:

$1 + 1 + 2 + 2 + 3 + 3 + 4 + 4 + 5 + 5 + 6 + 6 + 7 + 7 + 8 + 8 + 9 + 9 = 90$

Answer 2

Answer:

CORRECT ANSWER IS 90...