I believe the answer is B) positive
F = 41
E = 90
D = 49
from D to E is 55
then E to F also known as X = 36.08 or 41.51
Answer:
210x²c+252xc
Step-by-step explanation:
Answer:
280 hours
Step-by-step explanation:
Amount paid + profit = cost of a lesson per hour
$2000 + $5000 = $25(h)
7000 = 25h
7000/25 = h
280 = h