Yul and Sarah's art class started at 11:10 A. M. The class lasted 45 minutes. Yul left when the class was
done. Sarah stayed an extra 5 minutes to talk with the teacher and then left. Enter the time that each student left.

homozygous. one is homozygous, while two is heterozygous.

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.