Respuesta :

The correct answer is 60:28
ian2006huang

Answer:

C

Step-by-step explanation:

You can write 15:7 as a fraction, 15/7.

[tex]\frac{15}{7} *\frac{4}{4} =\frac{60}{28}[/tex]

4/4 is 1, so the ratio is not being changed.