Answer:
There are no numbers/pictures.
Step-by-step explanation:
Let,
digital cameras be "x"
video cameras be "y"
Now,
According to the question,
5x + 3y = $3,213..................................................equation (1)
y = 4x..................................................................equation (2)
Taking equation (1)
5x + 3y = $3,213
Substituting the value of "y" from equation (2), we get,
5x + 3(4x) = $3,213
5x + 12x = $3,213
17x = $3,213
x = $3,213 / 17
x = $189
Taking equation (2)
y = 4x
Substituting the value of "x", we get,
y = 4 ($189)
y = $756
Now,
John buys a digital and a video camera. So, it costs him ($189 + $756) = $945
Answer:
I believe the answer is C
Step-by-step explanation:
The answer is C.
The expression is telling you to multiply the parenthesis times four. When you multply two numbers, 
, it means that you're considering 
"copies" of 
, or if you prefer, repeated times.
So, you have
<- this is twice as much as the parenthesis
<- this is three times as much as the parenthesis
<- this is four times as much as the parenthesis
Answer:
8-4(-x+5)
8 +4x -20
4x -12
Step-by-step explanation:
8-4(-x+5)
8 +4x -20
4x -12
