formulas to do, and explanation (if possible)

thank you!

The USTreasury 5y bond is yielding 3.75% Match the yield youd expect the following companies to pay given their listed credit spreads Citibank: 18bps @ 5y A. 4.30% JPMorgan Chase: 15bps @ 5y B. 3.93% Capital One115bps@5y C. 4.90% Wells Fargo: 55bps @ 5y D. 3.90%