Let Z=2√3 - 2i a) Find z³ using polar form. Then express in rectangular form.

b)find the fourth roots of z and write in polar form.

please show work thank you! :)​

Apolice office claims that the proportion of people wearing seat belts is less than 65%. to test this claim, a random sample of 200 drivers is taken and its determined that 126 people are wearing seat belts. the following is the setup for this hypothesis test: h0: p=0.65 ha: p< 0.65 find the p-value for this hypothesis test for a proportion and round your answer to 3 decimal places.