Answer:
?=7
Step-by-step explanation:
Here is a cool trick that I believe only works with 9.
Add the numbers, 3+9+9+8+x= divisible by 9.
3+9+9+7+8 is 36 which is the only number divisible by 9.
Answer:
c, i think
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
I would say A simply because the definition of inferential statistics means to make a conclusion with evidence
Answer: =135
Step-by-step explanation:
f(x) = 6(21)+9
f(x)= 135