Answer:
k=8
Step-by-step explanation:
2k+5=21 (-5 on both sides to get rid of +5)
2k=16 (divide by 2 to get rid of that 2 in front of K)
k=8
Answer:
B
Step-by-step explanation:
Assume both their ages are 
One is 3 years older than the other, and the sum of their ages add up to 19

Answer:
x = -1
Step-by-step explanation:
3(x+2)=−5−2(x−3) multiply 3 and -2 with inside the parenthesis
3x + 6 = -5 -2x + 6 now add the like terms
3x + 2x = 1 - 6
5x = -5 simplify both sides
x = -1
Answer: The answer would be a line that is not as steep and a reflection in the line y = x.
If the a value in the equation is greater than 1, we will have a line that is steeper than the line y = x.
Now, we we take the inverse of the line, it will have a slope that is lower than y = x.
The graphs will be reflected in the line y = x.
Try graphing y = 3x and 3y = x.
Answer:
Option D. 
Step-by-step explanation:
Let
x -----> the original price of one game
y ----> the original price of one security programs
Remember that


The total pay with discount is

we have that


Find the total pay without discount

The amount saved is the difference
