Step-by-step explanation:
[tex]f = \frac{9c}{5} + 32[/tex]
[tex]25 = \frac{9c}{5} + 32[/tex]
[tex]25 - 32 = \frac{9c}{5} [/tex]
[tex] - 7 = \frac{9c}{5} [/tex]
[tex]9c = - 7 \times 5[/tex]
[tex]9c = - 35[/tex]
[tex]c = \frac{ - 35}{9} [/tex]
[tex]c = 3.88 {C}^{0} [/tex]