Acatering firm charges a fixed cost for overheads and a price per person. it is known that a party for 20 people costs $557, whereas a party for 35 people costs $909.50. what is the fixed cost and the cost per person charged by the company?

The cost per person is 27.98 anything over the first 20 people go to 23.50

Step-by-step explanation:

909.50-557= 352.50

352.50 / 15 = 23.50

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12

just get this app called photo math it should be able to do those