Answer:
the mean is 3
answer choice D
Step-by-step explanation:
60/20
You need to go to school sorry I don’t know I just joined sorry
0.42z = 2.52
z = 2.52 / 0.42
z = 6
same as
z + 7.45 = 13.45
z = 13.45 - 7.45
z = 6
answer is top right z + 7.45 = 13.45