The measure of the supplement of an angle whose measure is x

Which of the following properties can be used to show

Based on the figures as marked, /\rqs = —

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!