F(5) = 21
look on the table and find where x=5 on the top row, the number that is with it is 21
f(x) = 7
x=6
look on the table and find where f(x)=7 on the bottom row, the number with it is 6
Answer: It is a 40 degree angle
Boundary lines are dotted whenever the sign is strictly greater than or less than.
The only reason a line is not dashed would be that it would be equal to. A quick way to remember this would be that the extra line provided to make it equal would fill in the blanks. Hope this tip helps you, helped me ace many tests!
6x+4y.. maybe idk.. because you don't know the amount of table full
Answer:
Option B. 
Step-by-step explanation:
we have
solve for a
Applying logarithm neperian (ln) both sides
Remember that 
so
