The bank gave a loan with a 9% simple interest rate to be paid in 3 years. if 378 dollars was paid in interest, how much was the principal?

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A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account