Answer:
Circumference of the pizza is 50.3 ft.
Step-by-step explanation:
Circumference formula: 
<em><u>To find circumference:</u></em>
<em><u /></em>
<em><u /></em>
Then,

After that,

Then, round to the nearest tenth:

Answer:

Step-by-step explanation:
We are asked to express r in terms of A, P, and t.
We first divide both sides of the equation by t, which gives us

,
then, dividing both sides by P, we have

.
Swap the sides:
Finally subtracting 1 from both sides gives us

.
Answer: $500
Step-by-step explanation:
The vertical axis of the graph represents the value of the copy machine and the horizontal axis represents the years.
Using the line, one can see that in the first year, the value of the machine went from $7,000 to $6,500.
The loss in value is therefore;
= 7,000 - 6,500
= $500
<em>The needed graph is attached. </em>
3(y+3)+5y
<span>= 3y + 9 + 5y (combining like terms)</span>
<span>= 8y + 9 </span>