A catering company uses a linear function to determine the total cost of parties. The following table shows the costs for dinner parties with varied numbers of guests. What is the cost to cater a dinner party with 90 guests? Guests Total Cost 30 $315 60 $555

Answer: the total cost to cater the dinner party with 90 guests = 42750$.

explanation:

for 30 guests costs for dinner is $315 for each guest

so if one guest cost $315

then 30 guests costs 315*30=9450$

and for 60 guests cost for dinner is $555 for each guest

so if one guests costs $555

then 60 guests costs 555*60=33300$

cost for 90 guests = cost for 30 guest + cost for 60 guests

= 9450+33300 = 42750$

the answer for your question is $795