Answer:
0.3209
in case you dont know A z-score tells you if the distribution it comes from is normal.
Step-by-step explanation:
5(3x+4)=23
15x+20=23
15x=23-20
15x=3
x=3/15
x=1/5=0.2
Ana is 19 and Jordon is 31.
x=15
(10*9)/6=10*x/10
90/6=x
15=x