112
Step-by-step explanation:
The budget for the reception = $3,500
Charge for clean up = $60
Charge per person = $30
let the number of people they can invite = x
The greatest number of people that they may invite and still stay within their budget:
The budget for the reception = Charge for clean up + Charge per person × number of person to be invited
$3,500 = $60 + $30× x
3500 = 60 + 30x
we solve for x:
3500 - 60 = 30x
3440 = 30x
3440/30 = 30x/30
x = 114.67
Since we can't have a decimal number of people, the number of people will be 114
Now , if we take into consideration Mark and Heather as part of those that will be attending, then the total number of people they will invite = 114 - 2
= 112
Hence, the the greatest number of people that they may invite and still stay within their budget is 112