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

Question

Responses

9.1+107
9.1 plus 10 superscript 7 baseline

9.1×107
9.1 times 10 superscript 7 baseline

9.1×1014
9.1 times 10 superscript 14 baseline

8.1×107

Answer 1

The correct sum is 9.1×107.