Tim is selling tickets to a sporting event to raise money for his club he put some money extra money in his box before he began as he sells the ticket he records the number of tickets he has sold and then the total amount of money in the box so it is data are shown below

The price of each ticket will be the slope found from the data.  

Slope=m=(y2-y1)/(x2-x1)=(177.5-146.25)/(18-13)

m=6.25  (so the cost of the tickets is $6.25)

Now we can use any data point to solve for b, or the y-intercept of the line:

y=6.25x+b, using (177.5, 18)

177.5=6.25(18)+b

b=$65.00d

So he started with $65.00

Step-by-step explanation: