4n - 7 = 13
4n = 20
n = 5. Hope it helps!
Answer:
<em>Total bill = $70.80</em>
Step-by-step explanation:
$60 × 0.18 = $10.80
$60 + $10.80 = $70.80
Hope this helps! :)
<span>I believe for twelve (12) months.
Site A: $49.95 plus $59.40(4.95 x 12) equals $109.35
Site B: $9.95 x 12 equals $119.40
No, wait that's not right.
Okay, at 8 months, site A is pretty much at $90 (forget the nickels) and site B is $80 so site B is less.
At 7 months, site A is $85 and site B is $70 so site B is less.
At 9 months, site A is $95 and site B is $90 so site B is less.
At 10 months, site A $100 and site B is $100
It's got to be around 10 months somewhere.
Ten months would be $99.45 for site A and $99.50 for site B so B is less.
Eleven months is $104.40 for A and $109.45 for B so now B is more.</span>
By determining the area of the square, we get 
Step-by-step explanation:
Step 1:
The area of a square is given by squaring its side length.
The given squares side length is
cm.
The area of a square
Here a is the side length.
The area of the square is given as 7 cm².
Step 2:
Substituting the value of a in the equation, we get

Taking the x values on one side and the constants on the other side, we get

So 
So it has been proved.
Answer:
8.5x + 9x
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)