Answer :

To write the given equation [tex]\(0.3x^2 + 5x - 7 = 0\)[/tex] in standard form, we want it to look like the general quadratic equation [tex]\(ax^2 + bx + c = 0\)[/tex].

In the given equation:

[tex]\[0.3x^2 + 5x - 7 = 0\][/tex]

we can already see that it is in the standard form, where:
- [tex]\(a = 0.3\)[/tex]
- [tex]\(b = 5\)[/tex]
- [tex]\(c = -7\)[/tex]

The value of [tex]\(b\)[/tex] in the standard form equation is [tex]\(5\)[/tex].

Therefore, the correct choice is:
[tex]\[5\][/tex]