Using the formula for interest, I = Prt, solve for r. Please answer this as soon as possible please and thank you

Answer:
A
Step-by-step explanation:
I = Prt = r * Pt
divide Pt from both side we get
I/(Pt) = r
Answer:
a
Step-by-step explanation:
I = Prt ( isolate r by dividing both sides by Pt )
[tex]\frac{I}{Pt}[/tex] = r , that is
r = [tex]\frac{I}{Pt}[/tex] → a