Tracy needs to get her car’s fuel pump replaced. The part costs $400, the labor costs $150 per hour, and there is 7% sales tax. If the fuel pump takes 2.5 hours to fix, how much will the repair cost?

First, we need to calculate the cost of labor:

$150/hour x 2.5 hours = $375

Next, we need to add the cost of the part and the labor:

$400 + $375 = $775

Finally, we need to add the sales tax to the total cost:

$775 x 0.07 = $54.25

$775 + $54.25 = $829.25

Therefore, Tracy's car repair will cost $829.25.