Which cell structure is the outermost layer of a plant cell that is made mostly of cellulose?
1 answer:
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let
x--------> the monthly fee
y--------> the administration fee
we know that
--------> equation
--------> equation
Multiply by equation
------> equation
Adds equation and equation
Find the value of y
therefore
the answer is
the administration fee is equal to
Pretend the greater than or equal to sign is an equal sign, we will substitute it back in later.
x/2 = -4
Multiply both sides by 2 to get x alone
x = -8
Substitute the greater than or equal to sign back in and voila!
x≥-8