Answer:
Jack is 8
Step-by-step explanation:
j= jacks age
2j+5 =21
This is the equation from Twice jacks age plus five is 21
We want to isolate j
Subtract 5 from each side
2j+5 =21
2j+5-5 = 21-5
2j = 16
Divide by 2
2j/2 =16/2
j =8
Answer:
(A) 
Step-by-step explanation:
Slope intercept form of equation of line is 
The standard form of equation is 
Now let 
substituting the value of A and B in slope intercept form,
Answer:
30 or 120 /4
Step-by-step explanation:
a^p/q here p denotes power raised and q denotes inverse power or root. So, 60^1/2 denotes square root of 60 raised to power 1.
Answer:
The relation is not a function.
Step-by-step explanation:
The x-values of the relation are repetitive, making it not a function.
As a matter of fact I can
