Answer all please. Badly needed help.

Baekyun borrowed money from a cooperative bank at 1.75% interest for 5 years to add to his fund for new business. It was charged Php 5,250.00 for interest. How much will he need to pay after 5 years?

How much is the original selling price of shoes being sell by a vendor if Chen offers to buy it at Php 1000 and they agreed for its fair marking value of Php 1,150?

What is the present value of a deferred annuity Php 1,500 every 3 months for 8 years that is deferred 3 years if money is worth 6% converted or compounded quarterly?