Answer:
1. Let n represents the number of weeks she needs to make at least 28 costumes,
Since, she can make 4 costumes each week,

i.e. In number line closed circle on 7 and shaded right from 7.
2. If the maximum time taken by her is 10 weeks,
⇒ n ≤ 10 ----(2),
From equation (1) and (2),

I.e. closed circle on both 7 and 10 and shaded right from 7 and shaded left from 10.
Answer:
2
Step-by-step explanation:
7/3+3(2/3−1/3)^2
=7/3+6/9-3^2/9
=7/3+6/9-9/9
=7/3+2/3-3/3
=6/3
=2
Answer:
$230,000
Step-by-step explanation:
Contribution margin = Sales - Variable costs
=($250,000 - $137,500)
= $112,500
Contribution margin ratio = Contribution margin ÷ Sales
= ($112,500 ÷ $250,000)
= 0.45
Basically
Break-even sales = Fixed expenses ÷ Contribution margin ratio
=($103,500 ÷ 0.45)
= $230,000
Answer:
3/20
Step-by-step explanation:
Take the miles that Maria walked and subtract the miles that Cody walked
3/4 - 6/10
Simplify 6/10 by dividing the top and bottom by2
3/4 - 3/5
Get a common denominator of 20
3/4 *5/5 = 15/20
3/5 *4/4 =12/20
15/20 - 12/20
3/20