90 students went to the zoo three had a hot dog, soda and a popsicle ; 24 have a hot dog; five had a hot dog and soda; 33 had a soda ; 10 had a soda and popsicle; 38 had a popsicle ; eight had a popsicle and a hot dog. how many students did not have nothing? ?

the anwser is d) 75°

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.

answer: what are the answer choices?

step-by-step explanation: