A catering company uses a linear function to determine the total cost of parties. The following tables shows the cost for dinner parties with varied numbers of guests. What is the cost to cater a dinner party with 90 guests?

guest total cost
30 $315
60 $555

henry ordered 5 large pizzas

step-by-step explanation:

sorry no step by step

y=1/4x-4

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the answer would be 0.54