The formula l = prt gives the amount of simple interest "l" earned by multiplying the principal p by the annua

Question

this one seems tough

Answer 1

I don't really understand your question but...

I=prt:

I is the simple interest.

P is the principle amount, or the amount you started with

R is the rate at which the interest is accumulating (the percent) in decimal form (ex. 5% = .05)

T is the amount of time in years. If its less than one year make a fraction.

Multiply P x R x T and you have your answer.

:)

Answer 2

The formula is:

Interest = Principal X Rate X Time

Note that the unit of the Rate (a percentage per a period of time, such as 7%/Year) must match the unit of Time (such as 3 years) in the formula.