Respuesta :

wegnerkolmp2741o

Answer:

4% = r

Step-by-step explanation:

I = PRT

where I is the interest, P is the principle  R is the rate, T is the time

30 = 250 *r* 3

30 = 750r

Divide each side by 750

30/750 = 750r/750

.04 = r

Changing to percent form

4% = r