Mary invested her SP at 8% per annum simple interest for 2 years.
Rose invested her SP at 8% per annum for 2 years with interest compounded annually.
At the end of the 2 years Rose cared $160 more in interest than Mary.
How much had Mary and Rose initially invested?
ue on November 15. She makes a partial payment of $4500 on July 1. How many days is in the first period? What is the interest for the period?
How much gets applied to the principal in the first period?