Need help with 3,4 and 6 pls.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.