Add 7.3×107+1.8×107 . Which is the correct sum?(1 point)

Responses

8.1×107
8.1 times 10 superscript 7 baseline

9.1+107
9.1 plus 10 superscript 7 baseline

9.1×107
9.1 times 10 superscript 7 baseline

9.1×1014

1 answer

None of the given options are the correct sum.

The correct sum of 7.3×107+1.8×107 is 9.1×107.