Step-by-step explanation:
31.
[tex]i \: = \: \frac{prt}{100} \\ \frac{prt}{100} = i \\ r = \frac{i \times 100}{pt} [/tex]
32.
[tex]d = \frac{m}{v} \\ \frac{m}{v} = d \\ v = \frac{m}{d} [/tex]
33.
[tex]t = 5 - {v}^{2} \\ 5 - {v}^{2} = t \\ - {v}^{2} = t - 5 \\ v = - \sqrt{t - 5} [/tex]
34.
[tex]y = mx + c \\ mx + c = y \\ m = \frac{y - c}{x} [/tex]
Hope it helps
