The cost to rent the school is $200. The student council has a goal to raise $350 after paying the rental fee.

How many students will need to attend the activity night for the student council to pay for the rental fee and reach their goal? Show or explain all the steps you used to solve the problem.

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.

what are you trying find out?

step-by-step explanation: