on a dry surface, the braking distances (in feet), from 60 miles per hour to a complete stop, of a sedan can be approxim

[answerhappygod]

on a dry surface, the braking distances (in feet), from 60 miles
per hour to a complete stop, of a sedan can be approximated by a
normal distribution. and
a) find the braking distance of a sedan that corresponds to z=
-1.75
b)fins the braking distance of a sedan that corresponds to
z=2.6
c) what braking distance of a sedan represents the 80th
percentile?
d) what braking distance of a sedan represents the third
quartile?
e) what is the shortest braking distance of a sedan that can be in
the top 10% of braking distances?
f) what is the largest braking distance of a sedan that can be in
the bottom 15% of braking distances?
the graph is a normal distribution graph with the values ( 115,
120, 130, 135, 140, 145) spread evenly.