Answer
$7500$
Work Step by Step
Multiply 3 and 2.5 together and the powers of 10 together to obtain:
$=7.5 \times 10^{8+(-5)}
\\=7.5 \times 10^3$
The exponent of 10 is positive 3. This means that to convert the scientific notation to standard form, the decimal point has to be moved 3 places to the right.
Thus,
$7.5 \times 10^3 = 7500$
