Samir opened a savings account and deposited $500.00 as principal. The account earns 12% interest compounded annually. What is the balance after 8 years?

Me because some of question i don’t understand

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.