$1-$ If the current stock price for ABC Corporation is $$150$ an investor structure, the following bull spread.

Long ABC at strike $$145$ with a premium $$8\mathrm{.}8$ and short $$155$ strike price with premium $$3\mathrm{.}99.$ The investor

purchased one contract consisted of hundred shares. What is the total net cost of this bull spread, What is

the value of $K2$ and $K1,$ max loss, max gain, breakeven price. if the price at expiry is $$140,146,155$ what is

the maximum gain or loss at this prices?