Which trigonometric expression has a negative value?

3(10x-y)-5(x-y^2) need this solved asap

Orla and eduardo each looked at a strand of their hair under a microscope and measured the diameter. orla's strand was 0.005\,\text{cm}0.005cm in diameter, and eduardo's strand was 0.012\,\text{cm}0.012cm in diameter.

Michelle smith bought 30 shares of james company stock at $34 per share. the company paid annual dividends of $0.42 per share. what is the total annual dividend? show work a) 9.78 b) 12.60 c) 1.69 d) 11.97