The graph represents the cost of catering a dinner as a function of the number of guests.
what is the catering cost for a dinner with 40 guests?
$400
$600
$700
$800

Step-by-step explanation:

we know that

In the graph the first line is for the interval ----->

so

For

The catering cost for a dinner is equal to ----> see the graph to better understand the problem

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000