A is wrong because it is just a standard arithmetic sequence. It adds one every time. That WOULD be correct if it had started at 2, seeing as that is how much it costs to get the bike initially.
C is wrong because although it starts at 2 it adds 2 every hour. It should add 1 instead.
D is wrong because the price is the exact same. It means there is no additional cost for the subsequent hours.
3x+17+x-9=180 It is 180 because a straight line is 180 degrees 4x+8=180 -8 -8 subtraction property of equality --------------- 4/4x=172/4 division property of equality x=43 solution
