Asinger is recording a cd .the lengths of the three songs are 3.4 minutes, 2.78 minutes , and 4.19 minutes .about how much recording time will be on the cd?

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Icould really use some with this question.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.