Answer:
, Required equation
The number of people Mark invited to the party = 13
Explanation:
According to the question,
Total amount spent = (Price of bunch of ballons)+(cost per gift) x (Number of persons)
Given: Total amount spent =$72.95 , Price of bunch of ballons =$6.00 ,
cost per gift =$5.15
thus,
, Required equation
To solve , first
subtract 6 from both sides, we get
The number of people Mark invited to the party = 13