30 POINTS URGENT!
Write the expression as a number in scientific notation.

the quantity 5.2 times ten to the fifth power end quantity times the quantity 1.5 times ten to the negative eighth power end quantity all divided by the quantity 2.5 times ten to the negative fourth power end quantity

Group of answer choices

4.2 × 10−7

4.2 × 107

3.12 × 10−1

3.12 × 101