16) express the complex number in trigonometric form. -3i a) 3(cos 180° + i sin 180°) b) 3(cos 270° + i sin 270°) c) 3(cos 90° + i sin 90°) d) 3(cos 0° + i sin 0°)

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

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?