In a particular coin-flipping game, you flip a fair coin three times.You win one dollar for every head that is flipped in the three flips, unless you flip no heads, in which case you lose $18.What is the expected value of a single play of this game, to the nearest cent?

Choose one:

a.$0.75

b.-$1.5

c.-$0.75

d.$1.00

e.$1.5