A mother tracks the duration of her baby's three daily naps for a few weeks. The mean time, in minutes, and the standard deviation, SD, for each nap are recorded in the table below.

1st Nap 2nd Nap 3rd Nap
Mean = 83
SD = 9 Mean = 52
SD = 6 Mean = 39
SD = 11

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

This question awards 100 ! i really don’t want to fail i will also mark you !