Answer:
They purchased 11 Packets
Step-by-step explanation:
C=11p + 30
Answer:

Step-by-step explanation:
The bill = $190
Less flat fee = 25
Work done = $165

=Mr.Lehmans hourly rate for labor is 20$
=30+40=70-50=20
For this case we can make use of the Pythagorean theorem.
We have then:
(root (117)) ^ 2 = x ^ 2 + 6 ^ 2
Clearing x we have:
x ^ 2 = (root (117)) ^ 2 - 6 ^ 2
Rewriting:
x = root (117-36)
x = root (81)
x = 9
Answer:
The value of x is given by:
x = 9 cm