Answer
5.747e+01
_ _ _ 1.2e+07
5.74e+01
_ _ _ 5.74e+01
Work Step by Step
print(format(57.467657, "9.3e"))
print(format(12345678.923, "9.1e"))
print(format(57.4, ".2e"))
print(format(57.4, "10.2e"))
The above code will print out
5.747e+01
_ _ _ 1.2e+07
5.74e+01
_ _ _ 5.74e+01