Match the correct graph to the story below. A plumber charges a fixed fee for coming to your house, then charges a fixed amount per hour on top of this.

x = the time the job takes in hours.
y = the total cost of the plumber's time in dollars.

What expression is equivalent to 42x-56y

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? \ 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x