Answer:
B. Average of the data set
Step-by-step explanation:
The mean is defined as the average of a data set and it's formula is
Mean = 
8≤x/4 8≤x/4 → 32≤x
*4 *4
-3x=x+4 --simplified→ -3x=x+4
-x -x
-4x=4 → x=-1
/-4 /-4
49/x≥7 49/x≥7 → x≥343
hope this helps
Answer:
3x + 9 = 21
Step-by-step explanation:
Let Henry's age be x
Mary's age = 9 + 3x
21 = 9 + 3x
Can also be written as 3x + 9 = 21
Answer:
f(-1) = 6
Step-by-step explanation:
f(x) = x + 7 when x = -1
~Substitute
= (-1) + 7
~Simplify
= 6
Best of Luck!