[crashzzz]

hand 1)

there is 15.04$ in the pot and it's 7$ for you to call, therefore getting 2.08:1 pot odds to call.

you've got a flush draw therefore needing 1.86:1 pot odd to call.

EV = 1*(15.04$) + 1.86*(-7.24$) = 15.04$ - 13.46$ == + 1.54$

therefore, a call would have positive expectation

edit: that is true, if you believe your flush would win the pot only