Question 1:

In 2021, a standard 30-year fixed mortgage in the US could be had for somewhere around 3%. Following a series of interest rate increases by the Federal Reserve, today in October 2022 that number is closer to 7%. Suppose in 2021 you were interested in buying a house worth $350,000 by taking out a 30-year mortgage at 3% rate and 20% down payment. How much higher would your monthly mortgage payments be now for the same house at a 7% rate (same house price and percent down payment). Answer in whole dollars.

Question 2:

A 2-year zero-coupon bond has a face value of $1,000. If its YTM is 8.0%, how much is this zero-coupon bond worth? Round to the nearest cent.

Question 3:

A zero-coupon bond has face value of $1,000 and time to maturity of 8.0 years. If it is currently trading for $820, what is this zero-coupon bond's yield-to-maturity? Round to the hundredth of a percent. (e.g., 4.32% =4.32)