Let the number of pants have to be made be x.
So,
9.55 * x = 525.00
x =

≈ 54.97
Thus, the number of pants have to be made are 54.
Answer:
k < -5
Step-by-step explanation:
5(k+4)<–5
Divide each side by 5
5/5(k+4)<–5/5
k+4 < -1
Subtract 4 from each side
k+4-4 < -1-4
k < -5
Answer: y=0,5x²-x-1,5.
Step-by-step explanation:

We summarize (1) and (3):

Substitute b=-1 into (2):

From (5) subtract (4):

Substitute a=0,5 into (4):

Hense:
y=0,5x²-x-1,5.
1 is 4 and 4 and 4 is 11 and 5 is 15