Find the value of the variable and the measure of each labeled angle.

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!

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?