A museum offers a 2 hour guided group tour. For groups with fewer than 35 people the cost is $12.25 per person; for groups with 35 people or more the cost is $11.50 per person. The 38 people in the 11:00am tour
group each paid $12.25 in advance. What is the total refund that the museum owes the 11:00am group?

i think it is x = 1.2

what does x eaqual

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.