At some point, she will sell enough cards so that her sales cover her expenditures. So, the correct answer is ($40)
<h3> How did we figure this out?</h3>
 Lola is making greeting cards, which she will sell by the box at an arts fair. She paid $50 for a booth at the fair, and the materials for each box of cards cost $8. She will sell the cards for $10 per box of cards. 
We are going to use 50, 8 and 10 to find are answer.
Therefore, we are going to divide the numbers:

- Division problem
- 50/10
- 8 x ? = 40
<h3 /><h3>What is the missing number?</h3>
First, we need to figure out 50/10:



Therefore, at some point, she will sell enough cards so that her sales cover her expenditures. So, the correct answer is ($40)
 
        
             
        
        
        
Answer:
D. $680
Step By Step Explanation:
100 pages are typed. Each page coast $5 to type.
100 x 5 = 500
40 pages are revised once. It costs $3 to revise a page once.
40 x 3 = 120
10 pages are revised twice. It costs $3 to revise a page once so it will cost $6 to revise it twice
10 x 6 = 60
To find the total cost we add all the amounts together 
500 + 120 + 60 = 680
The final answer is $680
 
        
             
        
        
        
Answer:
   (-1, 6)
Step-by-step explanation:
A graphing calculator shows the vertex to be (x, y) = (-1, 6).
__
You can also find it by putting the equation into vertex form.
   y = -2(x^2 +2x) +4
   y = -2(x^2 +2x +1) +4 +2(1) . . . . . add 1 inside parens; the opposite outside
   y = -2(x +1)^2 +6
Compare to ...
   y = a(x -h)^2 +k
and you see a=-2, h=-1, k=6
The vertex is (h, k) = (-1, 6).
 
        
             
        
        
        
Answer: No solution
Step-by-step explanation:
(10–3)–2=10–(3–)
10−3−2=10−3, this is false so it is not correct, and the answer for the equation is no solution.
 
        
             
        
        
        
Answer:
Did you ever figure out the answer to this question? And if so, did you figure out how to solve it. 
Step-by-step explanation: