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

Question

Responses

8.1×107
8.1 times 10 superscript 7 baseline
9.1×1014
9.1 times 10 superscript 14 baseline
9.1×107
9.1 times 10 superscript 7 baseline
9.1+107

Answer 1

The correct sum is 9.1×107 (9.1 times 10 to the power of 7).