How to use "investment" in a sentence

"You idiots! This is an investment bank! There's no money here! Everything is done by transfer." And he looks at us all like we are children, with that arrogant expression on his face

Hundreds of gamblers - pretty young women, sweet-faced grandmothers, men in jeans and decoratively stitched Western shirts, retirement-age men in expensive but tacky leisure outfits, a few guys in three-piece suits, salesmen, doctors, mechanics, secretaries, Americans from all of the Western states, junketeers from the East Coast, Japanese tourists, a few Arab men - sat at the semielliptical blackjack tables, pushing money and chips forward, sometimes taking back their winnings, eagerly grabbing the cards that were dealt from the five-deck shoes, each reacting in one of several predictable ways: Some players squealed with delight; some grumbled; others smiled ruefully and shook their heads; some teased the dealers, pleading half seriously for better cards; and still others were silent, polite, attentive, and businesslike, as though they thought they were engaged in some reasonable form of investment planning