Answer:
27. C
28. D
Step-by-step explanation:
The average of all grades in his fencing class, including the upcoming one, (all grades summed up divided by the amount of grades) must be equal to 86 (percent), hence C is the right answer for 27.
Solving this equation gives:

So D is the right answer for 28.
Answer:
$532 for both rooms.
208 for dining room. 324 for living room.
Step-by-step explanation:
Find out how much square foot is in both rooms by multiplying length and width. then multiply each rooms square foot .by 2. then add up the two.
Yes you got the correct answer.
Y=-2+-4x m=slope b=y-intercept
m=-4
b=-2
Answer:
the second store has the better deal.
Step-by-step explanation:
12 ÷ 2 = 6
7.5 × 6 = 45
20.2 < 45