Answer:
Step-by-step explanation:
The sum of the interior angles of any polygon with five sides is equal to 
. Therefore, we can set up the following equation and solve for 
:
Answer:
Step-by-step explanation:
Hope this helps :)
Dissecting the information:
"The husband pays a flat rate of $125 for one year" means he pays $125 irrespective of how many times he visits (x). Doesn't depend on the number of visits (x).
"The wife pays $6 per visit" means that she pays $6x, of course, being dependent on the number of visits (x).
Hence, their total cost is sum of their individual costs, $(125+6x).
Husband's cost is <em>f(x)=125, </em>wife's cost is <em>g(x)=6x, </em>and total cost is <em>h(x)=125+6x. </em>Option D is correct answer.
ANSWER: D
To find the number of CD on sale, we can set an equation.
Let y be the number if CD.
As she bought 40%, the amount she bought= 40%y
The equation:
40%y = 80
0.4y = 80
y = 80÷0.4
y=320
Therefore there were originally 320 CDs.
Hope it helps!
