Tony has $34.Tony is going to the fair.The total cost for the fair can be represented by the function C(x) = 2x + 5,where x is the number of rides Tony rides.Tony plans to ride 13 rides at the fair.Will Tony have enough money?If so,how much money will he have left over?If not,how much more make money will he need?
He definitely has enough for 13 rides, so IGNORE the other person who ALWAYS, ALWAYS gives WRONG/RUBBISH answers.
So, take a pen/crayon/marker or whatever and STRIKE THIS OUT as many times as possible =====> Not enough for the fair if 13 rides.
This makes ABSOLUTELY NO SENSE =====> Need to bring at least, more dollars.
If you do the arithmetic correctly, you'll see how much the rides will cost and how much he'll have remaining.