Answer:
the selling price is $28.50
i m confused on part b if you explain it i could help
Step-by-step explanation:
If we are talking about degrees they should equal 180
Check the picture below. So let's use those two points on the line.

bearing in mind that the standard form is also a general form.
standard form for a linear equation means
• all coefficients must be integers, no fractions
• only the constant on the right-hand-side
• all variables on the left-hand-side, sorted
• "x" must not have a negative coefficient
Answer:
per = 18a 7a+2a+7a+2a
area = 14
7a*2a
Step-by-step explanation: