SOMEONE PLEASE HELP ME PLEASE FOR MATH (a&b)

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.