Answer:
-8p ≥ -56
=> p ≤ 7
Step-by-step explanation:
Answer:

Step-by-step explanation:
move variable to the right-hand side and change its sign

divide both sides of the equation

Answer: 6.48
Step-by-step explanation:
Mean is 79.4, population size is 5
MAD formular is addition of variance point /population size
n∑∣xi−xˉ∣
Answer:
t≤ 9
Step-by-step explanation:
3.5+4t≤ 39.5
subtract 3.5 from each side
4t≤ 36
divide each side by 4
t≤ 9