Answer: f(1 - x) = 2x + 1
<u>Step-by-step explanation:</u>
f(x) = 2x + 3
f(1 - x) = 2(1 - x) + 3 <em>replaced x with 1 - x</em>
= 2 - 2x + 3 <em>distributed the 2</em>
= 5 - 2x <em>simplified</em>
Answer:
a=1
Step-by-step explanation:
all work is shown and pictured
Let, the original price = x
x*20 /100 = 27
x = 2700/20 = 135
Original price was $135