I need these three and they shouldn’t be too hard.

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.

A5 foot long board is propped against the wall of a house. the board forms a 60° angle with the ground. how far is the base of the board from the wall?

1. write a quadratic function, in standard form, that fits the set of points. solve it as a system of three equations (-4, 9), (0, -7), and (1, -1)