If \( \frac{a}{3} \) =\( \frac{b}{4} \) = \( \frac{c}{7} \), then \(\frac{a+b+c}{c}\) is equal to:
4
1
3
2
D. 2
If \(\sqrt{7}\) = 2.6, then the value of \(\frac{5\sqrt{7}}{4\sqrt{7}-0.4}\) is:
1.2
1.1
1.5
1.3
D. 1.3