Practice what is sin(-30*) ? Sketch a graph to help determine the answer.

a. 0.5
b. -0.5
c. 1
d. 0

Please select the best answer from the choices provided

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Need same math paper but the back now i hope your able to read it cleary i need with hw