D = 8a The variable a represents the number of attendees, and the variable d represents the cost in dollars. At most how many attendees can there be if Will budgets a total of $72 for his graduation picnic?

At most 9  attendees can be there.

Step-by-step explanation:

Given equation: d = 8a , where a represents the number of attendees, and the variable d represents the cost in dollars.

To find : the number of attendees, if Will budgets a total of $72 for his graduation picnic.

72=8a

⇒ 9 = a  [divide both sides by 8]

∴ a= 9

Hence, at most 9  attendees can be there.