in 9 monyhs time, how much intrest would tommy earn on his savings of $300 at an inttrest rate of 5%?

To calculate the interest Tommy would earn on his savings, we need to use the formula for simple interest:

Interest = Principal (P) * Rate (R) * Time (T)

In this case, the Principal (P) is $300, the Rate (R) is 5% (which can be written as 0.05), and the Time (T) is 9 months.

Substituting these values into the formula:

Interest = $300 * 0.05 * 9

Now we can calculate the interest:

Interest = $300 * 0.05 * 9 = $135

Therefore, Tommy would earn $135 in interest on his savings of $300 at an interest rate of 5% over a period of 9 months.