Select all of the situations that would be represented by a negative integer. A.
Sean owes his brother $10.

B.
Bill jumps 8 feet.

C.
Chris hikes into a canyon 125 feet below sea level.

D.
Dave's thermometer reads 0°.

E.
Sophia earns $20 babysitting.

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.