Set the formula. length x width x height = Volume and solve for whichever
Answer:
Option A is correct not arithmetic
Explanation:
We have given terms
these terms are not an arithmetic progression because
Arithmetic progression is the sequence of terms in which difference between successive and proceeding terms is same.

we can see the difference between
and
is 
Whereas, the difference between
and
is
.
Divide the 27 by 4 and that will give you 6.75. Subract the 6.75 from the 27 and theres your answer (20.25) so the sale price is $20.25
=[5x-2]+[2x+1]
=5x-2+2x+1
=5x+2x-2+1
=7x-1