ANSWER
\(t = \frac{i}{pr}\)
EXPLANATION
We were given that the amount of simple interest earned is given by the formula,
\(i = prt\)
The above formula is an example of a literal equation.
We want to solve this formula for \(t\).
But we can observe that the product of two letters \(pr\) are multiplying the letter
\(t\).
So we multiply both sides of the literal equation by the reciprocal of \(pr\)which is \(\frac{1}{pr}\) to obtain,
\(i \times \frac{1}{pr} = \frac{1}{pr} \times prt\)
This implies that,
\(\frac{i}{pr} =t\)
We can rewrite this as,
\(t = \frac{i}{pr}\)
Therefore the correct answer is C.
